This is an annotated list of all the nuclear fission-based nuclear research reactors in the world, sorted by country, with operational status. Some "research" reactors were built for the purpose of producing material for nuclear weapons.

Algeria

Nuclear research reactors in Algeria
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
NurAlgiersPoolTemporary shutdown1,0001989-03-24Centre de Dévéloppement des Techniques Nucléaires
Es SalamAïn Oussera, DjelfaHeavy waterOperational15,0001992-02-17Centre de Recherche Nucléaire de Birine (CRNB)

Antarctica

Nuclear research reactors in Antarctica
NameLocationReactor typePurposeStatusCapacity (kW)Construction start dateOperation dateClosureOperator and owner
PM-3A NNPU "Nukey Poo"McMurdo StationPower reactorShut down1,80019621972-09, fully dismantled 1979US Navy

Argentina

Nuclear research reactors in Argentina
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RA-10Buenos AiresPoolUnder construction30,000(late 2023)National Atomic Energy Commission
RA-4RosarioHomog (S)Operational0.001972-01-01National University of Rosario
RA-2Buenos AiresCrit assemblyDecommissioned0.031966-07-01National Atomic Energy Commission
RA-8San Carlos de BarilocheCrit assemblyTemporary shutdown0.011997-06-17National Atomic Energy Commission
RA-1 Enrico FermiBuenos AiresTankOperational401958-01-20National Atomic Energy Commission
CAREM 25LimaPwr propulsionUnder construction100,000National Atomic Energy Commission
RA-6San Carlos de BarilochePoolOperational5001982-09-23National Atomic Energy Commission
RA-0CórdobaTankOperational0.011965-01-01National University of Córdoba
RA-3EzeizaPoolOperational10,0001967-05-17National Atomic Energy Commission

Australia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
OPALLucas HeightsPoolSee notes below table.Operational20,0002006-08-12ANSTOLWR
CFLucas HeightsCrit assemblyDecommissioned0.001973-03-01ANSTO (formerly Australian Atomic Energy Commission)
HIFARLucas HeightsHeavy waterPermanent shutdown10,0001958-01-262007-01-30ANSTO (formerly Australian Atomic Energy Commission)DIDO class
MOATALucas HeightsArgonautDecommissioned1001961-04-012009ANSTO (formerly Australian Atomic Energy Commission)Argonaut

Notes: The main uses of the current OPAL reactor are:

  • Irradiation of target materials to produce radioisotopes for medical and industrial applications
  • Research in the fields of materials science and structural biology using neutron beams and its sophisticated suite of experimental equipment
  • Analysis of minerals and samples using the neutron activation technique and the delay neutron activation technique
  • Irradiation of silicon ingots in order to dope them with phosphorus and produce the basic material used in the manufacturing of semiconductor devices

Austria

Nuclear research reactors in Austria
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
ASTRAViennaPoolDecommissioned10,0001960-09-241999Austrian Research Centers at Seibersdorf
SAR-GrazGrazArgonautDecommissioned101965-05-172004Reactor Institute of the Technical Universities in Graz
TRIGA II VIENNAViennaTRIGA Mark IIOperational2501962-03-07Atomic Institute of the Austrian Universities in Vienna

Bangladesh

Nuclear research reactors in Bangladesh
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
BTRR, BAEC TRIGA Research ReactorSavar, DhakaTRIGA Mark IIOperational3,0001986-09-14Atomic Energy Research Establishment (Bangladesh)

Belarus

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IRT-M MinskSosny, MinskPool, irtDecommissioned50001962-04-011988IRT research reactor
KristalSosny, MinskCrit assemblyExtended shutdown0
YALINA-ThermalSosny, MinskSubcritOperational02000-01-01
GiacintSosny, MinskCrit assemblyOperational02009-01-01
YALINA-BoosterSosny, MinskSubcritOperational02005-05-30
"Pamir"Sosny, MinskSubcritShut down1986mobile nuclear power reactor test

Belgium

  • GUINEVERE – fast, accelerator driven, lead-cooled reactor at SCK•CEN, Mol
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
VENUS-FMolCrit assemblyOperational0.101964-04-30zero power critical facility, converted to GUINEVERE, at SCK•CEN, Mol
BR-1MolGraphiteOperational1,0001956-05-114MWt air-cooled, graphite moderated research reactor at SCK•CEN, Mol
BR-2MolTank in poolOperational100,0001961-06-29125MWt water-cooled, beryllium moderated material testing research reactor at SCK•CEN, Mol
MYRRHAMolFastPlanned85,000
BR-3MolPwr powerDecommissioned40,9001962-08-2911MWe PWR reactor (shut down and fully decommissioned) at SCK•CEN, Mol
BR-02, Mock-up of BR2MolPoolDecommissioned0.501959-12-01
THETIS RR-BN-1GhentPoolDecommissioned2501967-04-07250kWt pool type reactor (shut down and fully decommissioned) at Ghent university (51°1′25.71″N 3°44′21.96″E/51.0238083°N 3.7394333°E/ 51.0238083; 3.7394333)

Brazil

Nuclear research reactors in Brazil
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
ArgonautaRio de JaneiroArgonautOperational0.201965-02-20-IEN - Instituto de Engenharia Nuclear
IEA-R1São PauloPoolOperational6,0001957-09-16-IPEN - Instituto de Pesquisas Energéticas e Nucleares
TRIGA IPR-R1Belo HorizontePool (TRIGA Mark I)Education, research, training and production of radioisotopesOperational100*1960-11-06-CDTN - Centro de Desenvolvimento de Tecnologia Nuclear*The expansion to 250 KW is in the licensing process, for which a new refrigeration system has been installed.
RMB - Reator Multipropósito BrasileiroIperó(CTMSP - Centro Tecnológico da Marinha em São Paulo)PoolOperational35,0001978-05-21-Amazul S.A.; CNEN - Comissão Nacional de Energia Nuclear
IPEN/MB-01São PauloPoolOperational0.101988-11-09-IPEN - Instituto de Pesquisas Energéticas e Nucleares

Bulgaria

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IRT-SofiaSofiaPool, irtPermanent shutdown2,0001961-09-182009Bulgarian Academy of Sciences

Canada

Nuclear research reactors in Canada
NameReactor typeStatusCapacityOperation dateClosureOperator and ownerNotes
MAPLE 1Medical isotope production reactorFinished; never entered service20002008Chalk River LaboratoriesIncomplete commissioning, never completed testing. However, criticality was achieved
MAPLE 2Medical isotope production reactorFinished; never entered service20032008Chalk River LaboratoriesIncomplete commissioning, never completed testing. However, criticality was achieved
NRUHeavy water cooled/moderatedShut down135 MW19572018Chalk River Laboratories
NRXHeavy water moderated, light water cooledShut down42 MW19471993Chalk River LaboratoriesOne of the highest flux reactors in the world until shut down
SLOWPOKE-1 prototypePool TypeShut down5kWChalk River Laboratories, University of TorontoThe prototype was moved to the University of Toronto in 1971
PTRPool typeShut down1990Chalk River Laboratories
ZED-2Operational200 Wth1960Chalk River Laboratories
ZEEPHeavy waterShut down019451973Chalk River LaboratoriesThe first nuclear reactor in Canada, and first outside the United States
WR-1Organically cooled CANDUShut down19651985Whiteshell LaboratoriesCoolant leak of 2,739 litres in Nov. 1978.
SLOWPOKE-3 demonstrationPool typeShut down2 MWth19871989Whiteshell Laboratories
SLOWPOKE-2Pool typeShut down019812017 (start of decommissioning)Saskatchewan Research CouncilOn 17 January 2018, the reactor surpassed 20,000 hours of operation.
SLOWPOKE-2Pool typeShut down20kW19841989Nordion
SLOWPOKE-2 prototypePool typeShut down20kW1971Tunney's Pasture
SLOWPOKE-2Pool typeShut down20kW1976Dalhousie University
SLOWPOKE-2Pool typeOperational01976École Polytechnique de Montréal
McMaster Nuclear ReactorSLOWPOKE-2 pool typeOperational5 MWth1959McMaster University
SLOWPOKE-2Pool typeOperational20kW1985Royal Military College
SLOWPOKE-2Pool typeShut down20kW19772017University of Alberta
SLOWPOKE-2Pool typeShut down20kW19762001University of TorontoRebuilt from SLOWPOKE-1
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Ecole Polytechnique Subcritical AssemblyMontrealSubcritDecommissioned0.001974-01-01
SLOWPOKE-2, KanataOttawaSlowpoke-2Decommissioned201984-06-06
PTRChalk RiverPoolDecommissioned0.101957-11-01
SLOWPOKE-2, HalifaxHalifaxSlowpoke-2Decommissioned201976-07-08
WR-1PinawaHeavy waterUnder decommissioning60,0001965-11-01
SLOWPOKE-2, TorontoTorontoSlowpoke-2Decommissioned201971-06-05
SLOWPOKE, AlbertaEdmontonSlowpoke-2Under decommissioning201977-04-22
ZEEPChalk RiverHeavy waterDecommissioned0.001945-09-01
SLOWPOKE-2, RMCKingstonSlowpoke-2Operational201985-09-06
NRUChalk RiverHeavy waterPermanent shutdown135,0001957-11-03
MAPLE 1Chalk RiverTank in poolPermanent shutdown10,000
MAPLE 2Chalk RiverTank in poolPermanent shutdown10,000
NRXChalk RiverHeavy waterPermanent shutdown42,0001947-07-22
SLOWPOKE-2, MontrealMontrealSlowpoke-2Operational201976-05-01
SRC SLOWPOKE, SaskatchewanSaskatoonSlowpoke-2Permanent shutdown201981-03-01
SDR SLOWPOKE Demo ReactorPinawaHeating protDecommissioned2,0001987-07-15
ZED-2Chalk RiverTankOperational0.201960-09-07
MNR McMaster UniversityHamiltonPool, mtrOperational3,0001959-04-04

Chile

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RECH-1SantiagoPoolOperational5,0001974-10-13Chilean Nuclear Energy Commission (CChEN)
RECH-2SantiagoPoolExtended shutdown2,0001989-09-06Chilean Nuclear Energy Commission (CChEN)Pool-type reactor, 10 MW MTR – Comisión Chilena de Energía Nuclear, Santiago (criticality 1977, refurbished 1989), currently in extended shutdown

China

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
MNSR IAEBeijingMnsrOperational271984-03-10
IHNI-1BeijingMnsrOperational302009-12-07
ZPR FastBeijingCrit fastExtended shutdown0.051970-06-29
MNSR-SHShanghaiMnsrDecommissioned301991-12-18
MNSR-SDJinanMnsrDecommissioned331989-05-01
HWRR-IIBeijingHeavy waterUnder decommissioning15,0001958-09-01
VENUS-1BeijingSubcritOperational0.002005-07-18
CARRBeijingTank in poolOperational60,0002010-05-13
CEFRBeijingFast breederOperational65,0002010-07-21Chinese experimental fast reactor (65 MW, 20 MWe, sodium cooled fast-spectrum neutron reactor). Located at CIAE Beijing, construction started May 2000, first criticality July 2010.
MNSR-SZShenzhenMnsrOperational301988-11-01
SPR IAEBeijingPoolOperational3,5001964-12-20
CMRR (China Mianyang Research Reactor)MianyangPoolOperational20,0002013-09-01
HTR-10BeijingHigh temp gasOperational10,0002000-12-21
MJTRChengduPoolOperational5,0001991-03-02
ESR-901BeijingPool-2 CoresOperational1,0001964-10-01
NHR-5BeijingHeating ProtOperational5,0001989-11-03
SPRR-300ChengduPoolOperational3,0001979-06-28
HFETR CriticalChengduCrit assemblyOperational0.001979-06-20
PPR PULSINGChengduPool, uzrhOperational1,0001990-08-01
HFETRChengduTankOperational125,0001979-12-27
Zero Power ReactorChengduCrit assemblyPermanent shutdown0.001966-01-01
TMSR-SF1ShanghaiExperimentalPlanned10,000
TMSR-LF1ShanghaiExperimentalPlanned2,000
TFHR Thorium Pebble BedShanghaiExperimentalPlanned2,000

Democratic Republic of the Congo

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TRICO IIKinshasaTriga Mark IIExtended shutdown1,0001972-03-24CREN-K University of KinshasaExtended shutdown since 2004
TRICO IKinshasaTriga Mark IPermanent shutdown501959-06-061970;CREN-K University of Kinshasa

Czech Republic

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
VR-1PraguePoolTraining reactorOperational0.501990-03-12FNSPE CTU
VR-2PragueSubcritOperational0.002023-07-06FNSPE CTU
LVR-15ŘežTank wwrOperational10,0001957-09-24A VVR-SM type reactor
SR-0PlzeňPoolDecommissioned1.001971-01-01
TR-0ŘežTankDecommissioned0.301972-01-01
LR-0ŘežPool - Variable CoreOperational51982-12-19

Denmark

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
DR-3RoskildeHeavy waterUnder decommissioning10,0001960-01-16RisøDIDO class experimental reactor (shut down permanently in 2000)
DR-2RoskildePoolDecommissioned5,0001958-12-181975
DR-1RoskildeHomog (L)Decommissioned21957-08-152001

Egypt

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
ETRR-1CairoTank wwrExtended shutdown2,0001961-02-08Nuclear Research Center at Inshas
ETRR-2CairoPoolOperational22,0001997-11-27Nuclear Research Center at InshasBuilt by Argentine INVAP

Estonia

  • Paldiski – 2 PWR naval training reactors (dismantled)

Finland

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
FiR 1EspooTRIGA Mark IIUnder decommissioning2501962-03-272015VTT Technical Research Centre of Finland
SCAHelsinkiSubcritDecommissioned0.001963-07-30

France

Working:

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Jules Horowitz ReactorSaint-Paul-les-DuranceTank in poolUnder construction100,000
OrpheeSaclay Nuclear Research Centre, Gif-sur-YvettePoolPermanent shutdown14,0001980-12-19Saclay Nuclear Research Centre
MinerveSaint-Paul-lès-DurancePoolUnder decommissioning0.101959-09-29
ÉoleSaint-Paul-lès-DuranceTank in poolUnder decommissioning1.001965-12-02
AquilonGif-sur-YvetteCrit fastDecommissioned0.101956-08-11
OsirisGif-sur-YvettePoolUnder decommissioning70,0001966-09-08
UlysseGif-sur-YvetteArgonautUnder decommissioning1001961-07-27
SileneDijonHomog (L)Permanent shutdown1.001974-01-01
MireneDijonHomog (L)Decommissioned0.001975-01-01
Strasbourg-CronenbourgStrasbourgArgonautDecommissioned1001966-11-22
PegaseSaint-Paul-lès-DuranceTankPermanent shutdown30,0001963-04-01
EL-2SaclayTankDecommissioned2,5001952-01-01
Zoé (EL1)Fontenay-aux-RosesHeavy waterDecommissioned1501948-12-15The first French nuclear reactor (1948)
ScarabeeCadarachePoolDecommissioned100,0001982-01-01
PhebusAix-en-ProvencePoolUnder decommissioning38,0001978-08-09
CabriSaint-Paul-lès-DurancePoolOperational25,0001963-01-01
ILL High Flux ReactorGrenobleHeavy waterOperational58,3001971-07-01Institut Laue-LangevinRéacteur à Haut Flux (RHF), currently the world's most intense source of neutrons and the source of the most intense neutron flux
MasurcaSaint-Paul-lès-DuranceCrit fastTemporary shutdown51966-12-14
IsisSaclay Nuclear Research Centre, Gif-sur-YvettePoolOperational7001966-04-28Saclay Nuclear Research Centre
HarmonieSaint-Paul-lès-DuranceTankDecommissioned1.001965-08-01
RapsodieCadaracheFast, powerUnder decommissioning40,0001963-01-01
SiloetteGrenoblePoolDecommissioned1001964-02-01
CesarSaint-Paul-les-DuranceCrit assemblyDecommissioned101964-12-01
EL 4Carhaix-PlouguerHeavy waterUnder decommissioning267,0001966-12-01
SiloeGrenoblePoolDecommissioned35,0001963-03-18
NereideFontenay-aux-RosesPoolDecommissioned5001960-09-15
MariusSaint-Paul-les-DuranceCrit assemblyDecommissioned0.401960-01-01
TritonFontenay-aux-RosesPoolDecommissioned6,5001959-06-29
MelusineGrenoblePoolDecommissioned8,0001958-07-01
EL 3SaclayHeavy waterDecommissioned18,0001957-01-01
ProserpineGif-sur-YvetteHomog (L)Decommissioned0.001958-03-17
AlectoGif-sur-YvetteHomog (L)Decommissioned0.001961-01-01
PeggySaint-Paul-les-DuranceCrit assemblyDecommissioned1.001961-06-01
AlizeeGif-sur-YvetteCrit assemblyPermanent shutdown0.101959-06-18
RNG New Generation ReactorSaint-Paul-les-DuranceBwr-prototypePermanent shutdown120,0001975-11-24
PHENIXMarcouleFast breederUnder decommissioning563,0001973-08-31
G-1Bagnols-sur-CèzeGraphite pileUnder decommissioning46,0001956-01-07
RachelDijonCrit fastDecommissioned0.101961-04-01
RubeoleGif-sur-YvetteCrit assemblyDecommissioned0.101959-07-03

Georgia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IRT-M TbilisiTbilisiPool, irtDecommissioned8,0001959-10-01

Germany

  • AKR II – Ausbildungskernreaktor II, Technische Universität Dresden; rating: 2W, commissioned 2005
  • AVR – Arbeitsgemeinschaft Versuchsreaktor, Forschungszentrum Jülich; rating: 15MW, commissioned 1969; closed 1988
  • BER II – Berliner-Experimentier-Reaktor II, Helmholtz-Zentrum Berlin für Materialien und Energie; rating: 10MW, commissioned 1990, closed 2019
  • FRG-1 (see ) – Geesthacht; rating: 5MW, commissioned 1958, closed 2010
  • FRM IITechnical University of Munich; rating: 20MW, commissioned 2004
  • FRMZ – TRIGA of the University of Mainz, Institute of Nuclear Chemistry; continuous rating: 0.10MW, pulse rating for 30ms: 250MW; commissioned 1965
  • FR2 - Forschungsreaktor 2; rating: 44 MW; commissioned 1957; closed: 1981
  • SUR-FW "Neutron"; Hochschule Furtwangen University; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1973
  • SUR-S; University of Stuttgart; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1964
  • SUR-U; Ulm University of Applied Sciences; type Siemens-Unterrichtsreaktor SUR-100; rating: 0.1 W; commissioned 1965

Planned

  • Wyhl, planned nuclear plant that was never built because of long-time resistance by the local population and environmentalists.
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
FRM IIGarchingPoolneutron physicsTemporary shutdown20,0002004-03-02-Technical University of Munichplans to restart in late 2025 after a five-year shutdown due to technical issues, pandemic delays, and legal disputes
FRMGarchingPoolneutron physicsUnder decommissioning4,0001957-10-312000-07-28Technical University of MunichGermany's first research reactor
RFRDresden / RossendorfTank wwrMaterial testing and research, neutron irradiationDecommissioned10,0001957-12-161991Helmholtz-Zentrum Dresden-Rossendorf
SUR HannoverHanoverHomog (S)Training and education in nuclear technologyDecommissioned0.001971-12-09Hanover University
BER-IIBerlinPoolBasic research with neutron beams, isotope productionPermanent shutdown10,0001973-12-092019Helmholtz-Zentrum Berlin
FRMZMainzTriga Mark IiBasic nuclear physics research, study of short-lived radionuclidesOperational1001965-08-03-Johannes Gutenberg University Mainz
ANEXMunichCrit assemblyExperimental nuclear physics, subcritical assembly for researchDecommissioned0.101964-05-01Technical University of Munich
FRF-1Frankfurt am MainHomogBasic research, neutron irradiationDecommissioned501958-01-011982University of Frankfurt
SARMunichArgonautTraining and research, Argonaut-type reactor for educationDecommissioned1.001959-06-01Siemens
BER-IBerlinHomog (L)Basic research, predecessor to BER-IIDecommissioned501958-07-241971Helmholtz-Zentrum Berlin
TRIGA HD IHeidelbergTriga Mark IResearch and training, medical isotope productionDecommissioned2501966-08-011977University of Heidelberg
ZLFRZittauTankTraining and education, zero-power reactor for teachingDecommissioned0.011979-05-252005Zittau/Görlitz University of Applied Sciences
AKR-2DresdenHomog (S)Training, teaching, and research in nuclear engineeringOperational0.001978-07-28-Technical University of Dresden
RAKEDresden/RossendorfTankCritical assembly for research on reactor physicsDecommissioned0.011969-10-031991Helmholtz-Zentrum Dresden-Rossendorf
RRRDresden/RossendorfArgonautResearch on reactor physics and materialsDecommissioned1.001962-12-161991Helmholtz-Zentrum Dresden-Rossendorf
STARKKarlsruheArgonautStatic critical assembly for reactor physics experimentsDecommissioned0.011963-01-01Karlsruhe Institute of Technology
FRF-2Frankfurt am MainTriga convBasic research, neutron irradiationDecommissioned1,0001977-10-011982University of Frankfurt
SUR FurtwangenFurtwangen im SchwarzwaldHomog (S)Training and education in radiation measurement and nuclear technologyOperational0.001973-03-28-Furtwangen University
KAHTERJülichCrit assemblyCritical assembly for high-temperature reactor researchDecommissioned0.101973-07-021988Forschungszentrum Jülich
KEITERJülichCrit assemblyCritical assembly for reactor physics experimentsDecommissioned0.001971-06-151988Forschungszentrum Jülich
FRHHanoverTriga Mark IResearch and trainingDecommissioned2501973-01-31University of Hanover
AEG Nullenergie ReaktorKarlstein am MainTankZero-power reactor for training and reactor physics experimentsDecommissioned0.101967-06-011985AEG
ADIBKA (L77A)JülichHomog (L)Adiabatic critical assembly for reactor physics researchDecommissioned0.101967-03-181988Forschungszentrum Jülich
SUR BremenBremenHomog (S)Training and education in nuclear technologyDecommissioned0.001967-10-10Bremen University
SUR KarlsruheKarlsruheHomog (S)Training and education in nuclear technologyDecommissioned0.001966-03-07Karlsruhe Institute of Technology
SUR UlmUlmHomog (S)Training and education in nuclear technologyOperational0.001965-12-01-Ulm University of Applied Sciences
SUR KielKielHomog (S)Training and education in nuclear technologyDecommissioned0.001966-03-29Kiel University
SUR HamburgHamburgHomog (S)Training and education in nuclear technologyDecommissioned0.001965-01-06Hamburg University of Applied Sciences
SUR AachenAachenHomog (S)Training and education in nuclear technologyPermanent shutdown0.001965-09-22RWTH Aachen University
NS Otto HahnGeesthachtPwr propulsionResearch on nuclear propulsion for shipsDecommissioned38,0001968-08-261979GKSS Research Center
SNEAKKarlsruheHomog (S)Critical assemblies for fast reactor testsDecommissioned0.001966-12-011995Karlsruhe Institute of Technologyseries SNEAK-1 to SNEAK-10
TRIGA HD IIHeidelbergTriga Mark IResearch and training, medical isotope productionDecommissioned2501978-02-281999University of Heidelberg
SUR StuttgartStuttgartHomog (S)Training and education in nuclear technologyOperational0.001964-04-24-University of Stuttgart
FRG-2GeesthachtPoolMaterial test reactor, irradiation tests for nuclear componentsUnder decommissioning15,0001963-03-151993Helmholtz Centre Hereon
SUR MunichMunichHomog (S)Training and education in nuclear technologyDecommissioned0.001962-02-01Technical University of Munich
PR-10 AEG PrüfreaktorKarlstein am MainArgonautTest reactor for nuclear engineering experimentsDecommissioned0.181961-01-011985AEG
FRJ-1 (MERLIN)JülichPool, heavy waterUsed for material irradiationDecommissioned10,0001962-02-241985Forschungszentrum Jülich
FRJ-2 (DIDO)JülichHeavy waterPrototype for material testingUnder decommissioning23,0001962-11-141983Forschungszentrum Jülich
FRG-1GeesthachtPoolResearch on nuclear ship propulsion, material research, isotope productionUnder decommissioning5,0001958-10-232010Helmholtz Centre Hereon
SUR BerlinBerlinHomog (S)Training and education in nuclear technologyDecommissioned0.001963-07-01Technical University of Berlin
SUAKKarlsruheSubcritSubcritical assembly for reactor physics researchDecommissioned0.001964-11-20Karlsruhe Institute of Technology
SUR DarmstadtDarmstadtHomog (S)Training and education in nuclear technologyDecommissioned0.001963-09-01Technical University of Darmstadt
SUAMunichSubcritDecommissioned0.001959-06-01Technical University of Munich
FR-2KarlsruheTankPrototype boiling reactorUnder decommissioning44,0001961-03-071981Karlsruhe Institute of Technology
FRNMunichTriga Mark IiiIsotope generation, beamline experiments in medical/biological researchUnder decommissioning1,0001972-08-231982Helmholtz Zentrum München
FMRBBraunschweigPoolResearch and measurement reactor for neutron experimentsUnder decommissioning1,0001967-10-031995Physikalisch-Technische Bundesanstalt

Ghana

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
GHARR-1AccraMnsrOperational301994-12-17

Greece

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Demokritos (GRR-1)AthensPoolExtended shutdown5,0001961-07-27Demokritos National Centre for Scientific Research;
NTUAthensSubcritPermanent shutdown0.101970-10-10
GR-B Subcritical AssemblyThessalonikiSubcritOperational0.001971-08-04

Hungary

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Budapest Research ReactorBudapestTank wwrOperational10,0001959-03-25KFKI Atomic Energy Research Institute (see25 June 2014 at theWayback Machine) – (10 MW VVR-SM Budapest Research Reactor)
Nuclear Training ReactorBudapestPoolOperational1001971-05-22Technical University of Budapest (BME)
ZR-6MNACrit assemblyDecommissioned0.001972-11-28

India

  • Bhabha Atomic Research Center (BARC) – Trombay Apsara reactor – Asia's first nuclear reactor. 1 MW, pool type, light water moderated, enriched uranium fuel supplied by France CIRUS reactor – 40 MW, supplied by Canada, heavy water moderated, uses natural uranium fuel Dhruva reactor – 100 MW, heavy water moderated, uses natural uranium fuel Purnima series
  • Indira Gandhi Center for Atomic Research (IGCAR) – Kalpakkam PFBR – 500MWe Sodium cooled fast breeder nuclear reactor, under construction. Expected completion 2015. FBTR – 40 MW Fast Breeder Test Reactor, uses mixed (plutonium and uranium) carbide fuel KAMINI –30kW, uses U-233 fuel
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
PURNIMA-IIIMumbaiTankDecommissioned0.001990-09-11
ApsaraMumbaiPoolDecommissioned1,0001956-08-04
Apsara-UMumbaiPoolOperational2,0002018-09-10
High Flux RRVisakhapatnamPoolPlanned40,000
Critical Facility for AHWR and PHWRMumbaiTankOperational0.102008-04-07
DhruvaMumbaiHeavy waterOperational100,0001985-08-08
CIRUSMumbaiHeavy waterPermanent shutdown40,0001960-07-10
KAMINIKalpakkamU-233 fuelledOperational301996-10-29
FBTRKalpakkamFast breederOperational40,0001985-10-18
PURNIMA-IIMumbaiHomog (L)Decommissioned0.011984-05-10
PURNIMAMumbaiFastDecommissioned0.001972-05-01
ZERLINAKalpakkamTankDecommissioned0.101961-01-01
Thermal RRVisakhapatnamPoolPlanned125,000

Indonesia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RSG-GASSouth TangerangPool, mtrOperational30,0001987-07-29SIWABESSY 30MWh Multi-Purpose Reactor (installed 1987)
KARTINI-PSTASlemanTRIGA Mark IIOperational1001979-01-25
TRIGA Mark II, BandungBandungTRIGA Mark IIOperational2,0001964-10-192MW installed 1997

Iran

  • Tehran – AMF reactor at Tehran Nuclear Research Center (supplied by USA, 1967)
  • Isfahan, Nuclear Technology Center (mainly supplied by China) MNSR – 27kW miniature neutron source reactor light water subcritical reactor (LWSCR) heavy water zero power reactor (HWZPR) graphite subcritical reactor (GSCR)
  • ArakIR-40 heavy water-moderated reactor (under construction, planned commissioning 2014)
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
ENTC LWSCRIsfahanSubcritOperational0.001992-01-01
Tehran Research Reactor (TRR)TehranPoolOperational5,0001967-11-01
ENTC HWZPRIsfahanCrit assemblyOperational0.101995-06-01
ENTC MNSRIsfahanMnsrOperational301994-03-01
ENTC GSCRIsfahanSubcritDecommissioned0.001992-01-01

Iraq

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TAMMUZ-1BaghdadPoolPermanent shutdown40,0001987-03-0140 MW thermal tank-pool research reactor(OSIRIS reactor). Destroyed in Operation Scorch Sword and Operation Opera (Supplied, fueled and serviced by France.)
TAMMUZ-2BaghdadPoolPermanent shutdown5001987-03-01500 KW ISIS neutron modelling module. Destroyed in Operation Desert Storm and Operation Iraqi Liberation (Supplied, fueled and serviced by France.)
IRT-5000BaghdadPool, irtPermanent shutdown5,0001967-01-01Destroyed in Operation Desert Storm and Operation Iraqi Liberation (supplied by The Soviet Union)

Note: Tamuz-1 and Tamuz-2 are parts of the same French nuclear research complex design, the OSIRIS research complex. All three reactors were located at the same site.

Israel

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IRR-1YavnePoolOperational5,0001960-06-16Soreq Nuclear Research Center5 MW light water research reactor (supplied by USA, operational 1960)
IRR-2YavneHeavy waterOperational26,0001963-12-01Negev Nuclear Research CenterEL-102 uranium/heavy water research reactor, 50-75 MWt (supplied by France, operational 1964, not under IAEA safeguards)

Italy

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RSV TAPIRORomeFast sourceOperational51971-04-04
RANARomePoolDecommissioned101965-02-15
RB-3BolognaZero power D2ODecommissioned0.101971-08-09
TRIGA RC-1RomeTriga Mark IiOperational1,0001960-06-11
LENA, TRIGA II PAVIAPaviaTriga Mark IiOperational2501965-11-15
ISPRA-1IspraHeavy waterPermanent shutdown5,0001959-03-24
SM-1 Subcritical AssemblyPaviaSubcritOperational0.001961-01-01
ROSPO 2RomePoolDecommissioned0.201963-01-01
Struttura SottocriticaPaduaSubcritDecommissioned0.001962-01-01
L-54MMilanHomog (L)Under decommissioning501959-11-20
RB-2BolognaArgonautDecommissioned101963-05-28
AGN-201 CostanzaPalermoHomog (S)Operational0.021960-02-12
RITMO Reactor (RC-4)RomePoolDecommissioned0.011965-07-08
Galileo Galilei RTS-1PisaPoolDecommissioned5,0001963-04-04
RB-1BolognaCrit graphiteDecommissioned201962-07-01
Avogadro RS-1SaluggiaPool, mtrDecommissioned5,0001959-09-10
ECO (Orgel Critical Experiment)IspraCrit fastUnder decommissioning21965-11-01
ESSOR Nuclear PlantIspraHeavy waterUnder decommissioning43,0001967-03-19

Jamaica

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
UWI CNS SLOWPOKEMonaSLOWPOKE-2 reactorOperational201984-03-13

Japan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TCA Tank Critical AssemblyTōkai, IbarakiCrit assemblyUnder decommissioning0.201962-08-23Japan Atomic Energy Agency (JAEA)
FCATōkai, IbarakiCrit fastUnder decommissioning21967-04-29Japan Atomic Energy Agency (JAEA)
TRACYTōkai, IbarakiPulsingUnder decommissioning101995-12-20Japan Atomic Energy Agency (JAEA)
STACYTōkai, IbarakiCrit assemblyTemporary shutdown0.201995-02-23Japan Atomic Energy Agency (JAEA)
JMTROaraiTankPermanent shutdown50,0001968-03-30Japan Atomic Energy Agency (JAEA)
Toshiba NCAKawasakiCrit assemblyTemporary shutdown0.201963-12-11
JRR-4Tokai MuraPoolUnder decommissioning3,5001965-01-28Japan Atomic Energy Agency (JAEA)
JOYOOaraiFast, Na cooledTemporary shutdown140,0001977-04-24Japan Atomic Energy Agency (JAEA)
KUROsakaTankOperational5,0001964-06-25
KUCAOsakaCrit assemblyOperational0.101974-08-06
HTTROaraiHigh temp gasOperational30,0001998-10-11Japan Atomic Energy Agency (JAEA)
JRR-3Tōkai, IbarakiHeavy waterDecommissioned10,0001962-01-01Japan Atomic Energy Agency (JAEA)
NSRRTōkai, IbarakiTriga AcprOperational3001975-06-30
YAYOITokyoFast sourceUnder decommissioning21971-04-10
DCATokyoCrit assemblyUnder decommissioning1.001969-12-28
JMTRCNAPoolDecommissioned0.101965-10-01
Musashi ReactorTokyoTriga Mark IiUnder decommissioning1001963-01-30
JRR-3MTokaiPoolOperational20,0001990-03-22
TTRTokyoPoolUnder decommissioning1001962-03-13
HTRTokyoPoolUnder decommissioning1001961-12-25
TRIGA-II RikkyoYokosukaTRIGA Mark IIUnder decommissioning1001961-12-08
UTR KINKIOsakaArgonautOperational0.001961-11-11
JRR-2Tōkai, IbarakiTankUnder decommissioning10,0001960-10-01Japan Atomic Energy Agency (JAEA)
VHTRCTōkai, IbarakiCrit assemblyDecommissioned0.011985-05-13Japan Atomic Energy Agency (JAEA)
OCF Ozenji Critical FacilityKawasakiCrit assemblyDecommissioned0.101962-10-01
MCFSaitamaCrit assemblyDecommissioned0.201969-08-01
JRR-1Tōkai, IbarakiHomog (L)Decommissioned601957-08-27Japan Atomic Energy Agency (JAEA)Japan Research Unit No. 1, shut down
SCATōkai, IbarakiCrit assemblyDecommissioned0.201966-08-01Japan Atomic Energy Agency (JAEA)
AHCFTōkai, IbarakiCrit assemblyDecommissioned0.011961-01-01Japan Atomic Energy Agency (JAEA)

Jordan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
JRTRAmmanTank in poolOperational5,0002016-04-25Jordan University of Science and Technology (JUST) – Ar RamthaJordan's first nuclear reactor, 5 MW research reactor, supplied by South Korea, first critical 2015, operational 2016.
JSA - Jordan Subcritical AssemblyAmmanSubcritOperational0.002013-06-07Jordan University of Science and Technology (JUST) – Ar Ramtha

Kazakhstan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IGRKurchatovGraphite, pulseOperational0.001960-06-01National Nuclear Center, Semipalatinsk Test Site(Impulse Graphite Reactor)
WWR-K AlmatyAlmatyPoolOperational6,0001967-10-22Institute of Nuclear Physics of the National Nuclear CenterVVR-K – 10 MWe reactor[citation needed]
RAKurchatovTankPermanent shutdown5001987-01-01National Nuclear Center, Semipalatinsk Test Sitezirconium hydride moderated reactor (dismantled)
IVG.1MKurchatovPwrOperational35,0001972-09-19National Nuclear Center, Semipalatinsk Test Site
WWR-K CFAlmatyCrit assemblyOperational0.101972-12-01Institute of Nuclear Physics of the National Nuclear Center

Latvia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
SRR Salaspils Research ReactorSalaspilsPoolUnder decommissioning5,0001961-09-26Salaspils, Nuclear Research Center
RKS-25SalaspilsPoolPermanent shutdown0.031966-09-15Salaspils, Nuclear Research Center

Libya

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IRT-1TajouraPool, irtTemporary shutdown10,0001981-08-28Tajura Nuclear Research Center, REWDRC(see ) – 10 MW research reactor (supplied by the USSR)
TNRC Critical FacilityTajouraCrit assemblyOperational0.10

Malaysia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TRIGA Puspati (RTP)Kajang, Kuala LumpurTRIGA Mark IIOperational1,0001982-06-28Malaysian Institute of Nuclear Technology Research

Mexico

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Nuclear Chicago Mod 9000Mexico CitySubcritOperational0.001969-01-01National Polytechnic Institute"Nuclear-Chicago Modelo 9000" subcritical research reactor
Chicago Modelo 9000ZacatecasSubcritExtended shutdown0.001969-05-14Autonomous University of Zacatecas
TRIGA Mark IIILa Marquesa OcoyoacacTRIGA Mark IIIOperational1,0001968-11-08National Institute for Nuclear Research
SUR-100 UNAMMexico CityHomog (S)Decommissioned0.001972-09-22

Morocco

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
MA-R1RabatTRIGA Mark IIOperational2,0002007-05-02

Netherlands

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
HORDelftPoolOperational2,3001963-04-25Reactor Institute Delft, part of Delft University of Technology
HFRPettenTank in poolOperational45,0001961-11-09Owned: JRC Petten Operated: NRG
PALLASPettenNaPlanned0.00Owned: JRC Petten Operated: NRG
LFRSchagenArgonautUnder decommissioning301960-09-282010Owned: JRC Petten Operated: NRG
KRITOPettenCrit assemblyDecommissioned0.101963-03-29Owned: JRC Petten Operated: NRG
BARNWageningenPoolDecommissioned1001963-04-011980Wageningen University
ATHENEEindhovenArgonautDecommissioned101969-02-031973Eindhoven University of Technology
KSTRArnhemAqueous breederDecommissioned1,0001974-05-222003KEMA
DelphiDelftSubcritOperational0.00Reactor Institute Delft, part of Delft University of Technology

Nigeria

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
NIRR-1ZariaMnsrOperational302004-02-03
Multipurpose Research ReactorAbujaPoolOperational10,0002010-06-15

North Korea

NameLocationTypePurposeStatusThermal Power [kW]Operation DateClosure DateOwner and OperatorNotes
IRT-2000YongbyonHeavy-water moderated research reactorOperational8,0001965(supplied by USSR, 1965), 8 MW (2 MW 1965–1974, 4 MW 1974–1986), Not under IAEA safeguards
Yongbyon 1YongbyonMagnoxShut down5,000198720075 MWe Magnox reactor, provides power and district heating (active 1987–1994, reactivated 2003, and shut-down in July 2007), Not under IAEA safeguards

Norway

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
JEEP IIKjellerTankPermanent shutdown2,0001966-12-012018Institute for Energy Technology (IFE)
HBWR (Halden boiling water reactor)HaldenHeavy waterPermanent shutdown20,0001959-06-292018Institute for Energy Technology (IFE)
NORAKjellerCrit assemblyDecommissioned0.051961-01-011967Institute for Energy Technology (IFE)
JEEP IKjellerHeavy waterDecommissioned4501951-06-011967Institute for Energy Technology (IFE)

Pakistan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Under IAEA safeguards
PARR-IIslamabadMTR/PoolOperational10,0001965-12-21PINSTECH
PARR-llIslamabadMNSR/PoolOperational301989-11-02PINSTECH
PARR-lllIslamabadPoolUnder construction10,000PINSTECH
Not under IAEA safeguards
Khushab-IKhushab DistrictHWROperationalClassified. Estimated: 50,000-70,000.1998KNC
Khushab-IIKhushab DistrictHWROperational2010KNC
Khushab-IIIKhushab DistrictHWROperational2013KNC
Khushab-IVKhushab DistrictHWROperational2015KNC
Khushab-VKhushab DistrictHWRUnder constructionKNC

Panama

Peru

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RP-10LimaPoolOperational10,0001988-11-3010 MW pool-type material test reactor, located in Huarangal built by Argentine INVAP. First criticality in 1989.
RP-0LimaCrit assemblyOperational0.001978-07-201 W critical assembly, located in Lima, built by Argentine INVAP. First criticality in 1978.

Philippines

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
PRR-1Quezon CitySubcritOperational0.003 MW TRIGA-converted reactor, Quezon City. Managed by the Philippine Nuclear Research Institute (formerly Philippine Atomic Energy Commission). 1st criticality in August 1963, reactor conversion in March 1984, criticality after conversion in April 1988, shut down since 1988 for pool repairs, on extended shutdown at present.

Poland

  • Ewa reactor - 10 MW VVR-SM research reactor (dismantled in 1995)
  • Maria reactor - 30 MW research reactor
  • Anna reactor - 10kW research reactor (dismantled)
  • Agata reactor - 10 W zero-power research reactor (dismantled)
  • Maryla reactor - 100 W zero-power research reactor (dismantled)
  • UR-100 reactor - 100kW training reactor (dismantled)
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
MARIAOtwockPoolOperational30,0001974-12-18National Center for Nuclear Research
HELENAOtwockSubcritDecommissioned0.001963-09-02
AGATAOtwockPoolDecommissioned0.101973-05-05
PANNAOtwockCrit assemblyDecommissioned0.101963-01-01
MARYLAOtwockPoolDecommissioned1001963-12-29
EWAOtwockTank wwrUnder decommissioning10,0001958-06-14

Portugal

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RPILisbonPoolPermanent shutdown1,0001961-04-25Instituto Tecnológico e Nuclear

Puerto Rico

Romania

  • Institute for Nuclear Research, Mioveni, 110km northwest of Bucharest - TRIGA reactor (capable consisting of either a 500kW pulse ACPR core, or a 14 MW steady state core)
  • National Institute for Research and Isotopic Separation, Govora, 170km west of Bucharest - no research reactors, but instead devoted to heavy water production
  • National Institute for Physics and Nuclear Engineering, IFIN-HH, Mǎgurele, 5km southwest of Bucharest - a 2 MW VVR-S research reactor (shut down in April 2002, with decommissioning/dismantling started in 2013)
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TRIGA II Pitești - SS CorePiteștiTriga Ddal coreOperational14,0001980-02-02
TRIGA II Pitești - PulsedPiteștiTriga dual coreOperational5001980-02-02
HELENBucharestSubcritDecommissioned0.001969-01-01
VVR-S BucharestBucharestTank wwrUnder decommissioning2,0001957-07-01
RP-01BucharestTankDecommissioned0.001976-02-01

Russia

A total of 98 nuclear research facilities, including:

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Stend-7ElectrostalCrit assemblyDecommissioned0.701979-01-01
FS-2MoscowSubcritPermanent shutdown0.201972-10-17
WWR-MGatchinaTank wwrExtended shutdown18,0001959-12-29
PIK Physical ModelGatchinaCrit assemblyOperational0.101983-12-26
PIKSaint PetersburgTankUnder construction100,000
BFS-1ObninskCrit assemblyOperational0.201962-02-20
659-LNizhny NovgorodCrit assemblyDecommissioned0.001979-01-01
Stend-6ElectrostalCrit assemblyDecommissioned0.051968-01-01
Stend-3ElectrostalCrit assemblyDecommissioned21967-01-01
Stend-2ElectrostalCrit assemblyDecommissioned21969-01-01
Stend-1ElectrostalCrit assemblyDecommissioned21966-01-01
SGOObninskCrit assemblyDecommissioned0.101969-01-01
RF-GSObninskCrit assemblyDecommissioned0.011962-01-01
COBRAObninskCrit assemblyDecommissioned0.301970-01-01
BR-1ObninskCrit assemblyDecommissioned0.051965-01-01
AMBF-2ObninskCrit assemblyDecommissioned0.101984-11-22
STRELAObninskCrit assemblyDecommissioned0.021968-08-14
BFS-2ObninskCrit assemblyOperational1.001969-09-30
BARS-6ObninskPrompt burstOperational101994-12-30
FG-5ObninskCrit assemblyDecommissioned0.101967-01-01
27/VTObninskFast, powerUnder decommissioning70,0001959-01-01
TOPAZObninskSpace testDecommissioned1501966-01-01
BR-10ObninskLoop typePermanent shutdown8,0001958-06-01
Stend-5ElectrostalCrit assemblyOperational0.301967-04-20
IIN-3MMoscowPrompt burstDecommissioned0.001972-01-01
TOPAZ-II (YENISEY)MoscowSpace testDecommissioned1351967-01-01
Stend-4ElectrostalCrit assemblyOperational0.031967-04-20
AM-1ObninskGraphiteUnder decommissioning10,0001954-06-15
BARS-3MMoscowPrompt burstDecommissioned0.001988-01-01
27/VMObninskPwr powerUnder decommissioning70,0001956-03-01
659Nizhny NovgorodCrit assemblyOperational0.101963-06-15
1125Nizhny NovgorodCrit assemblyOperational0.601975-11-17
TIBR-1MMoscowPrompt burstDecommissioned0.001976-01-01
IFR (IBR-1)MoscowFastDecommissioned61960-06-01
IBR-30DubnaFast, pulsedDecommissioned251969-01-01
BARS-2MoscowPrompt burstDecommissioned0.001971-01-01
IR-50MoscowPoolPermanent shutdown501961-02-20
WWR-TSObninskTank wwrOperational15,0001964-11-04
IBR-2MDubnaFast, pulsedOperational2,0001978-12-15
BARS-4MoscowPrompt burstTemporary shutdown101980-06-03
IRV-2MMoscowPoolUnder construction4,0001974-12-28
SM-3DimitrovgradPressure vesselOperational100,0001961-01-10
Gidra (Hydra)MoscowHomog (L)Operational101971-11-24
ArgusMoscowHomog (L)Operational201981-11-02
IKAR-SSarovCrit graphiteOperational0.102008-12-01
BIGRSarovFast, pulsedOperational5001977-03-31
GIR-2SarovFast, pulsedOperational1.001993-04-12
FKBN-2SnezhinskCrit fastOperational0.102000-01-01
FKBN-2MSarovCrit fastOperational0.002001-03-02
IRT-2000MoscowTankDecommissioned2,0001957-11-23
BR-1MSarovFast, pulsedOperational51979-01-01
IRT-MEPhIMoscowPool, irtExtended shutdown2,5001967-05-26
BR-K1SarovFast, pulsedOperational101995-11-30
IVV-2MZarechniyPoolOperational15,0001966-04-23
MBIRDimitrovgradFast, powerUnder construction150,000
Stend T-2ObninskSpace testDecommissioned0.001970-01-01
VRL-03MoscowPoolDecommissioned1001961-01-01
VRL-02MoscowPoolDecommissioned1001959-01-01
S111MoscowCrit assemblyDecommissioned0.00
1120Nizhny NovgorodCrit assemblyDecommissioned0.001975-01-01
MERSaint PetersburgCrit assemblyPermanent shutdown0.201970-01-01
G-1Saint PetersburgCrit assemblyPermanent shutdown0.201964-01-01
FM SM-3DimitrovgradCrit assemblyOperational0.021970-01-01
FM MIR.M1DimitrovgradCrit assemblyOperational0.011966-10-30
Narciss-M2MoscowCrit assemblyOperational0.011983-08-23
SK PhysicalMoscowCrit assemblyOperational0.602000-04-18
Efir-2MMoscowCrit assemblyOperational0.101973-01-01
DeltaMoscowCrit assemblyOperational0.101985-04-24
PMoscowCrit assemblyOperational0.201987-07-17
FM MRMoscowCrit assemblyDecommissioned0.101971-01-01
GrogMoscowCrit assemblyPermanent shutdown0.101981-01-01
B-1000MoscowCrit assemblyOperational0.201986-09-03
KvantMoscowCrit assemblyOperational1.001990-01-01
AstraMoscowCrit assemblyOperational0.101981-08-05
SF-7MoscowCrit assemblyDecommissioned0.101975-03-12
SF-3MoscowCrit assemblyDecommissioned0.101979-01-01
SF-5MoscowCrit assemblyDecommissioned0.101972-01-01
SF-1MoscowCrit assemblyDecommissioned0.101972-05-19
MayakMoscowCrit assemblyDecommissioned0.011967-01-01
RBMKMoscowCrit assemblyOperational0.031982-01-06
UGMoscowCrit assemblyPermanent shutdown0.101965-12-18
MATR-2ObninskCrit assemblyUnder decommissioning0.401963-08-02
FS-1MObninskCrit assemblyDecommissioned0.201970-03-03
MAKETMoscowCrit assemblyOperational0.101976-12-30
Argus-2MoscowHomog (L)Decommissioned50
U-3Saint PetersburgPoolOperational501964-12-13
Arbus (AST-1)DimitrovgradTankDecommissioned12,0001963-01-01
VK-50DimitrovgradBwr-prototypeOperational200,0001964-12-15
GammaMoscowTankUnder decommissioning1501981-12-30
FBR-L fast burst-laserChelyabinskFast burstOperational51981-03-31
YAGUAR (NHUAR)ChelyabinskHomog pulOperational41988-12-31
IGRIK, pulsed homogChelyabinskHomogOperational301975-03-15
BARS-5 (FNRS)SnezhinskFast burstOperational101986-01-01
RG-1MNorilskPoolDecommissioned1001970-04-15
BOR-60DimitrovgradFast breederOperational60,0001968-12-30
F-1MoscowGraphite pilePermanent shutdown241946-12-25
RBT-6DimitrovgradPoolOperational6,0001975-09-24
RBT-10/2DimitrovgradPoolOperational7,0001983-11-24
IRT-TTomskPool, irtOperational6,0001967-07-22
RomashkaMoscowSpace testDecommissioned401964-08-01
MRMoscowTankUnder decommissioning50,0001963-12-01
SBR-2ObninskFast, Hg cooledDecommissioned1501957-03-01
RPTMoscowGraphiteDecommissioned20,0001952-04-01
OR-MMoscowTank wwrOperational3001988-05-20
TVRMoscowTankUnder decommissioning2,5001949-01-01
VVR-2MoscowTankDecommissioned3,0001954-01-01
VIR-2MSarovHomog pulOperational251980-04-24
VIR-2SarovHomog pulDecommissioned251965-01-01
BR-5ObninskFast, Na cooledDecommissioned5,0001958-01-01
BR-2ObninskFastDecommissioned1001956-01-01
MIR.M1DimitrovgradPool/channelsOperational100,0001966-12-24
IR-8MoscowPool, irtOperational8,0001981-08-12
UVPShMoscowSubcritOperational0.001964-03-18
UG SubcriticalMoscowSubcritOperational0.001955-04-20
UVMoscowSubcritOperational0.001980-12-04
RBT-10/1DimitrovgradPoolDecommissioned10,0001983-12-01
UG RigElektrostalCrit graphiteDecommissioned0.031967-04-20
VVERMoscowSubcritExtended shutdown0.001974-04-06
UV-1MoscowSubcritExtended shutdown0.001983-10-25
UV-2MoscowSubcritExtended shutdown0.001972-11-04
AksamitMoscowCrit assemblyOperational0.002002-02-25
R-1Saint PetersburgSubcritPermanent shutdown0.001991-08-19
SO-2MMoscowSubcritPermanent shutdown0.001975-01-01
7KVDPodolskSubcritPermanent shutdown0.001979-12-07

Saudi Arabia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
LPRRRiyadhPoolUnder construction30

Serbia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RBBelgradeHeavy waterTemporary shutdown0.001958-04-29Vinča Nuclear Institute, VinčaAt the beginning, the RB reactor was designed and constructed as an unreflected zero power heavy water - natural uranium critical assembly. First criticality was reached in April 1958. Later, the 2% enriched metal uranium fuel and 80% enriched UO2 fuel were obtained and used in the reactor core. Modifications of the reactor control, safety and dosimetry systems (1960, 1976, 1988) converted the RB critical assembly to a flexible heavy water reflected experimental reactor with 1 W nominal power, operable up to 50 W. Several coupled fast-thermal systems were designed and constructed at RB reactor in the early 1990s, for research in fast reactors physics.
RAVinčaHeavy waterDecommissioned6,5001959-12-282002Vinča Nuclear Institute, Vinča6.5 MW heavy water moderated and cooled research reactor

Slovenia

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TRIGA- MARK II LJUBLJANALjubljanaTRIGA Mark IIOperational2501966-05-31Jožef Stefan Institute(web page )

South Africa

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
SAFARI-1PretoriaTank in poolOperational20,0001965-03-18South African Nuclear Energy Corporation (NECSA)Pelindaba Nuclear Research Center near Pretoria 25°48′03″S 27°56′54″E/25.80083°S 27.94833°E/ -25.80083; 27.94833(Pelindaba Nuclear Research Center)
Pelinduna-0PretoriaCrit fastDecommissioned0.001967-01-01Pelindaba Nuclear Research Center near Pretoria 25°48′03″S 27°56′54″E/25.80083°S 27.94833°E/ -25.80083; 27.94833(Pelindaba Nuclear Research Center)

South Korea

Nuclear research reactors in South Korea
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
KRR-1SeoulTRIGA Mark IIDecommissioned2501962-03-19KAERIResearch Reactor,100kW, built 1962 (decommissioned)
KRR-2SeoulTRIGA Mark IIIDecommissioned2,0001972-04-10KAERIResearch reactor, 2MW, built 1972 (decommissioned)
AGN-201KYonginHomog (S)Operational0.011982-12-04Kyung Hee UniversityAerojet General Nucleonics Model 201 research reactor, 0.01kW commissioned 1982
HANARODaejeonPoolOperational30,0001995-02-08KAERIMAPLE class reactor
KJRRBusanPoolPlanned15,000KAERI

Spain

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
CORAL-IMadridCrit assemblyDecommissioned0.051968-03-28
ARBI ReactorBilbaoArgonautDecommissioned101962-06-26
Argos Research ReactorBarcelonaArgonautDecommissioned1.001961-06-011992Polytechnic University of CataloniaArgos
JEN-1 ModMadridPoolDecommissioned3,0001958-10-09

Sweden

Nuclear research reactors in Sweden
NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
R1StockholmPoolResearchDecommissioned6001954-07-131970KTH
R-2NyköpingTankResearch, production of isotopes for industryUnder decommissioning50,0001960-05-042005Studsvik
R2-0NyköpingPoolResearch, production of isotopes for industryUnder decommissioning1,0001960-06-20Never completedStudsvik
Ågestaverket (R-3)Farsta, StockholmPoolDistrict heatingUnder decommissioning80,00019631973Vattenfall AB, Barsebäck Kraft AB
R-4Marviken, NorrköpingResearch, plutonium productionNever completed, abandoned in 1970
FR-0NyköpingCrit fastResearchDecommissioned0.011964-02-011971StudsvikZero-power fast reactor
KRITZNyköpingCrit assemblyDecommissioned0.101969-10-01Studsvik

Switzerland

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
AGN 211 PBaselHomog (S)Decommissioned21959-08-01
CROCUSLausanneCrit assemblyOperational0.101983-07-13École polytechnique fédérale de LausanneNull-power light water reactor. In operation.
PROTEUSVilligenCrit assemblyUnder decommissioning1.001968-01-012012Paul Scherrer InstitutNull-power reconfigurable reactor (graphite moderator/reflector).
DIORITZürichHeavy waterUnder decommissioning30,0001960-10-101977Paul Scherrer Institut
AGN-201PGenevaHomog (S)Decommissioned0.001958-06-012020University of BaselResearch reactor, in operation since 1958 (demonstrated at the Expo 58 in Brussels), since 1959 at the University of Basel. Decommissioned in 2020.
SAPHIRWürenlingenPoolDecommissioned10,0001957-04-301993Paul Scherrer Institut
LucensLucens, VaudHeavy-water moderated, carbon dioxide gas-cooled.Pilot nuclear power plantDecommissioned30,00010 May 19683 March 1969Nationale Gesellschaft zur Förderung der industriellen Atomtechnik Energie Ouest SuissePrototype power reactor (GCHWR) 30 MWh/6 MWe. Shut down in 1969 after accident. Site decommissioned.

Syria

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
SRR-1DamascusMNSROperational301996-03-04

Taiwan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
THARHsinchuArgonautDecommissioned101974-04-20
THORHsinchuTriga convOperational2,0001961-04-13
THMERHsinchuMobile Edu.Decommissioned0.001975-11-19
TRRTaoyuanHeavy waterDecommissioned40,0001973-01-03
WBRLTaoyuanHomog (L)Decommissioned1001983-02-23
ZPRLTaoyuan CityPoolPermanent shutdown301971-02-02

Tajikistan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Argus-FTIDushanbeHomog (L)Under construction50

Thailand

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TRR-1/M1BangkokTRIGA Mark IIIOperational1,3001977-11-07Thailand Institute of Nuclear Technology (TINT)Thai Research Reactor 1/Modification 1, Installed 1962, modified 1975–77.
SUT MNSRNakorn RatchasimaMNSRPlanned45Ongkharak Nuclear Research Center (under construction)

Turkey

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
TR-1IstanbulPoolDecommissioned1,0001962-01-01Turkish Atomic Energy AuthorityÇNAEM
TR-2, Turkish Reactor 2IstanbulPoolExtended shutdown5,0001981-12-10Turkish Atomic Energy AuthorityÇNAEM
ITU-TRRIstanbulTRIGA Mark IIOperational2501979-03-11Istanbul Technical University

Fuel pilot plants

  • TRD Fuel Pilot Plant (Turkish Atomic Energy Authority)

Ukraine

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
KIPT Experimental Neutron SourceKharkivSubcritUnder construction0.19
WWR-M KyivKyivTank wwrOperational10,0001960-12-02Kyiv Institute for Nuclear Research
Multipurpose RRKyivPoolPlanned20,000Kyiv Institute for Nuclear Research
SNI, IR-100SevastopolPool, irtOperational2001967-04-18Sevastopol Institute of Nuclear Energy and Industry
SPh IR-100SevastopolCrit assemblyOperational0.001974-07-17Sevastopol Institute of Nuclear Energy and Industry

United Kingdom

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
ZEUSDidcotCrit fastDecommissioned0.101955-12-22
ZEPHYRDidcotCrit fastDecommissioned0.001954-02-01
Dounreay Zero Energy ZETRThursoCrit assemblyDecommissioned0.001957-08-13
ERICAldermastonCrit fastDecommissioned0.001952-01-01
WaterfallAldermastonCrit fastDecommissioned0.001954-01-01
AtlasAldermastonCrit assemblyDecommissioned0.001952-01-01
VIPERAldermastonFast burstPermanent shutdown0.501967-05-26Atomic Weapons Establishment
BERKELEY Zero EnergyBerkeleyGraphiteDecommissioned1.001966-04-14
BEPODidcotGraphite, airUnder decommissioning6,5001962-01-011968
LIDODidcotPoolDecommissioned3001956-09-011974
HAZELDidcotHomog (L)Decommissioned0.001957-01-01
DAPHNEDidcotHeavy waterDecommissioned0.101962-01-01
ZENITH IIWinfrith, DorchesterGraphiteDecommissioned1.001972-03-01
ZENITH IWinfrith, DorchesterGraphite CO2Decommissioned0.501959-12-01
JUNOWinfrith, DorchesterCrit assemblyDecommissioned0.101964-03-01
HEROSeascaleGraphite AGRDecommissioned31962-06-01
Windscale AGR (WAGR)SeascaleGraphite AGRDecommissioned120,0001962-08-091982
DragonWinfrith, DorchesterHe cooledUnder decommissioning20,0001964-01-01
Dounreay MTRThursoHeavy waterDecommissioned22,5001958-05-011969
MERLINAldermastonPoolDecommissioned5,0001959-07-01
HORACEAldermastonCrit assemblyDecommissioned0.011958-05-01
DIMPLEWinfrith, DorchesterPoolDecommissioned0.101962-01-01
ICI TRIGA ReactorBillinghamTRIGA Mark IDecommissioned2501971-08-011988ICI Physics and Radioisotopes Dept of ICI R&D (later to become Tracerco)
Universities Research ReactorRisley, WarringtonArgonautDecommissioned3001964-07-071991Shut down 1991, decommissioned, land released 1996
CONSORT reactor Imperial CollegeLondonPoolDecommissioned1001965-09-042012Imperial College, Silwood Park campusBegan operation in 1965, shut down in 2012, fuel removed in 2014. Fully decommissioned by 2022.
UTR-300East Kilbride, GlasgowArgonautDecommissioned3001963-06-011995Scottish Universities Research and Reactor Centre (100kW Argonaut class reactor deactivated 1995, fully dismantled 2003)
VERA Nuclear AssemblyAldermastonCrit fastDecommissioned0.101961-01-01
VULCANThursoPwrPermanent shutdown0.001961-01-01
NeptuneRaynesway, DerbyPoolOperational0.301963-01-03Rolls-Royce Marine Power Operations Ltd
HECTORWinfrith, DorchesterZero power htdDecommissioned0.101963-03-01
HERALDAldermastonPoolDecommissioned5,0001960-10-10
NESTORDidcotArgonautDecommissioned301961-01-01
ZEBRAWinfrith, DorchesterCrit fastDecommissioned1.001962-12-01
JASONGreenwich, LondonArgonautDecommissioned101959-09-301999
Dounreay Fast ReactorThursoFast breeder reactorUnder decommissioning65,0001959-11-011977
PLUTOHarwellHeavy waterUnder decommissioning26,0001957-10-251990Harwell AERE
DIDOHarwellHeavy waterUnder decommissioning26,0001956-11-071990Harwell AERE
GLEEPHarwellGraphiteDecommissioned501947-08-181990Harwell AERE
ToadThursoCrit assemblyDecommissioned0.011960-07-01
PantherThursoCrit assemblyDecommissioned0.011961-01-01
PumaThursoCrit assemblyDecommissioned0.001960-11-01
PhoenixThursoCrit assemblyDecommissioned0.101960-07-01
SiriusThursoCrit assemblyDecommissioned0.101961-05-01
TessieThursoCrit assemblyDecommissioned51959-11-01
QMC Subcritical AssemblyStratford Marsh, LondonSubcritDecommissioned0.001959-03-01Queen Mary College
QMC UTR-BStratford Marsh, LondonArgonautDecommissioned1001968-06-101982Queen Mary College
HECTORNAGraphite CO2Decommissioned0.101963-03-10
PILE 1Sellafield1957Sellafield was previously named Windscale until 1971. Shut down 1957 after Windscale fire.
PILE 2Sellafield1957Sellafield was previously named Windscale until 1971.

United States

Plutonium production reactors
NameLocationReactor typePurposeStatusCapacity (MWth)Construction start dateOperation dateClosureOperator and owner
B-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsPreserved as a museumManhattan Project
F-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and cocoonedManhattan Project
D-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and cocoonedManhattan Project
H-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and cocoonedUnited States Atomic Energy Commission
DR-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and cocoonedUnited States Atomic Energy Commission
C-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and cocoonedUnited States Atomic Energy Commission
KE-Reactor (K-East)Hanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and being cocoonedUnited States Atomic Energy Commission
KW-Reactor (K-West)Hanford SiteGraphite pileProduction of plutonium-239 for weaponsShut down and being cocoonedUnited States Atomic Energy Commission
N-ReactorHanford SiteGraphite pileProduction of plutonium-239 for weapons and electricity for regional gridShut down and cocoonedUnited States Atomic Energy Commission
R-ReactorSavannah River SiteHeavy waterProduction of plutonium-239 and tritium for weaponsSurveillance and maintenance mode22601964United States Atomic Energy Commission
P-ReactorSavannah River SiteHeavy waterProduction of plutonium-239 and tritium for weaponsSurveillance and maintenance mode26801988United States Atomic Energy Commission
L-ReactorSavannah River SiteHeavy waterProduction of plutonium-239 and tritium for weaponsSurveillance and maintenance mode27001988United States Atomic Energy Commission
K-ReactorSavannah River SiteHeavy waterProduction of plutonium-239 and tritium for weaponsSurveillance and maintenance mode27101988United States Atomic Energy Commission
C-ReactorSavannah River SiteHeavy waterProduction of plutonium-239 and tritium for weaponsSurveillance and maintenance mode29151985United States Atomic Energy Commission

Army Nuclear Power Program

Army Nuclear Power Program reactors
NameLocationReactor typePurposeStatusCapacity (kW)Construction start dateOperation dateClosureOperator and owner
SM-1Fort BelvoirPWRTraining and testingDecommissioned20008 April 1957 to 16 March 1973United States Army
SM-1AFort GreelyElectricity and heat supplyDecommissioned200013 March 1962 to 1972United States Army
PM-2ACamp Century, GreenlandElectricity and steam supplyDecommissioned20003 October 1960United States Army
PM-1Sundance Air Force StationPWRElectricity and steam supplyDecommissioned125025 February 1962 to 1968United States Air Force
PM-3AMcMurdo Station, AntarcticaElectricity, seawater desalinization, and heat supplyDecommissioned17503 March 1962 to September 1972United States Navy
MH-1APanama Canal ZoneElectricity and fresh water supplyDecommissioned1000024 January 1967United States Army
SL-1Idaho National LaboratoryBWRStationary power supply demonstrationDecommissioned. Destroyed by explosion January 3, 1961.400 thermal, 200 electric11 August 1958 to 3 January 1961United States Army
ML-1Idaho National LaboratoryGas turbineMobile power supply demonstrationDecommissioned14030 March 1961United States Army

United States Naval reactors

Naval Nuclear Power Program reactors
NameLocationReactor typePurposeStatusCapacity (kW)Construction start dateOperation dateClosureOperator and owner
S8GKnolls Atomic Power LaboratoryTrainingOperationalUnited States Navy
MARF/S7GKnolls Atomic Power LaboratoryTrainingOperationalUnited States Navy
D1GKnolls Atomic Power LaboratoryPrototypeDecommissionedUnited States Navy
S3GKnolls Atomic Power LaboratoryPrototypeDecommissionedUnited States Navy
ex-USS Daniel Webster (SSBN-626)Joint Base CharlestonS5W reactor moored training ship (MTS-626)OperationalUnited States Navy
ex-USS Sam Rayburn (SSBN-635)Joint Base CharlestonS5W reactor moored training ship (MTS-635)OperationalUnited States Navy
ex-USS La Jolla (SSN-701)Joint Base CharlestonS6G reactor moored training ship (MTS-701)OperationalUnited States Navy
S1CWindsor, ConnecticutTrainingDecommissionedUnited States Navy

Research reactors

United States Federal Government non-plutonium production research reactors
NameLocationReactor typePurposeStatusCapacity (kW)Construction start dateOperation dateClosureOperator and owner
SEFOR (Southwest Experimental Fast Oxide Reactor)Cove Creek Township, ArkansasResearch, development, and experimentsDecommissioned
SL-1INLStationary power supply demonstrationDecommissioned; destroyed by accidental explosion400 thermal 200 electric19581961United States Army
AFSRINLResearch, development, and experimentsDecommissioned1959Late 1970s
ARMF-IINLResearch, development, and experimentsDecommissioned19601974
ARMF-IIINLResearch, development, and experimentsDecommissioned19621968
Advanced Test Reactor (ATR)INLResearch, development, and experimentsOperational1967
Advanced Test Reactor Critical (ATRC)INLResearch, development, and experimentsOperational1964
A1W-AINLResearch, development, and experimentsDecommissioned19581994
A1W-BINLResearch, development, and experimentsDecommissioned19591987
BORAX-IINLResearch, development, and experimentsDecommissioned; intentionally exploded19531954
BORAX-IIINLResearch, development, and experimentsDecommissioned19541955
BORAX-IIIINLResearch, development, and experimentsDecommissioned19551956
BORAX-IVINLResearch, development, and experimentsDecommissioned19561958
BORAX-VINLResearch, development, and experimentsDecommissioned19621964
CET (Critical Experiment Tank)INLResearch, development, and experimentsDecommissioned19581962
CFRMF (Coupled Fast Reactivity Measurement Facility)INLResearch, development, and experimentsDecommissioned19681991
CP-1University of ChicagoResearch, development, and experimentsDecommissioned19421943University of Chicago
CP-2Site AResearch, development, and experimentsDecommissioned1019431954University of Chicago
CP-3Site AResearch, development, and experimentsDecommissioned30019441954University of Chicago
CP-5Site AResearch, development, and experimentsDecommissioned5,0001979Argonne National Laboratory
CRCE (Cavity Reactor Critical Experiment)INLResearch, development, and experimentsDecommissioned1967Early 1970s
Experimental Breeder Reactor I (originally CP-4)INLResearch, development, and experimentsMuseum19511963
Experimental Breeder Reactor IIINLResearch, development, and experimentsDecommissioned19611994
Experimental Boiling Water ReactorINLResearch, development, and experimentsDecommissioned
Experimental Test ReactorINLResearch, development, and experimentsDecommissioned
EBOR (Experimental Beryllium Oxide Reactor)INLResearch, development, and experimentsNever operated
EOCR (Experimental Organic Cooled Reactor)INLResearch, development, and experimentsNever operated
ETRC (Engineering Test Reactor Critical Facility)INLResearch, development, and experimentsDecommissioned19571982
FRAN (Nuclear Effects Reactor)INLResearch, development, and experimentsDecommissioned19681970
Gas Cooled Reactor ExperimentINLResearch, development, and experimentsDecommissioned19601961United States Army
Heat Transfer Reactor Experiment 1INLResearch, development, and experimentsDecommissioned19551956
Heat Transfer Reactor Experiment 2INLResearch, development, and experimentsDecommissioned19571961
Heat Transfer Reactor Experiment 3INLResearch, development, and experimentsDecommissioned19581960
HOTCE (Hot Critical Experiment)INLResearch, development, and experimentsDecommissioned19581961
Integral Fast Reactor (IFR)INLResearch, development, and experimentsNever operated
JANUS reactorINLResearch, development, and experimentsDecommissioned1992
JUGGERNAUTINLResearch, development, and experimentsDecommissioned
Liquid Metal Fast Breeder Reactor (LMFBR)INLResearch, development, and experimentsDecommissioned
LOFT (Loss of Fluid Test Facility)INLResearch, development, and experimentsDecommissioned19731985
ML-1INLResearch, development, and experimentsDecommissioned19611964United States Army
MTR (Materials Testing Reactor)INLResearch, development, and experimentsDecommissioned19521970
NRAD (Neutron Radiography Facility)INLResearch, development, and experimentsOperational1977
OMREINLResearch, development, and experimentsDecommissioned16,00019571963
PBF (Power Burst Facility)INLResearch, development, and experimentsDecommissioned19721985
RMF (Reactivity Measurement Facility)INLResearch, development, and experimentsDecommissioned19541962
SCRCE (Spherical Cavity Reactor Critical Experiment)INLResearch, development, and experimentsDecommissioned19671973
SNAPTRAN-1INLResearch, development, and experimentsDecommissionedEarly 1960sEarly 1960s
SNAPTRAN-2INLResearch, development, and experimentsDecommissioned19641964
SNAPTRAN-3INLResearch, development, and experimentsDecommissioned19651966
SPERT-IINLResearch, development, and experimentsDecommissioned19551964
SPERT-IIINLResearch, development, and experimentsDecommissioned19601964
SPERT-IIIINLResearch, development, and experimentsDecommissioned19581968
SPERT-IVINLResearch, development, and experimentsDecommissioned19621970
SUSIE (Shield Test Pool Facility)INLResearch, development, and experimentsDecommissioned19591962
S1W/STRINLResearch, development, and experimentsDecommissioned19531989
S5GINLResearch, development, and experimentsDecommissioned19651995
ZPR-7INLResearch, development, and experimentsDecommissioned
THRITS (Thermal Reactor Idaho Test Station)INLResearch, development, and experimentsDecommissioned19641964
TREAT (Transient Reactor Test Facility)INLResearch, development, and experimentsOperational1950 20171994 present
Zero Power Physics Reactor (ZPPR)(formerly Zero Power Plutonium Reactor)INLResearch, development, and experimentsDecommissioned19691990
ZPR-IIIINLResearch, development, and experimentsDecommissioned19551970
ZPR-6INLResearch, development, and experimentsDecommissioned1982
ZPR-9INLResearch, development, and experimentsDecommissioned1981
603-AINLResearch, development, and experimentsDecommissioned
710INLResearch, development, and experimentsDecommissioned
HBFR (High Flux Beam Reactor)BNLResearch, development, and experimentsDecommissioned100,000 (1966-1986) 85,000 (2007-present)19651999
Brookhaven Medical Research ReactorBNLResearch, development, and experimentsDecommissioned2000
Brookhaven Graphite Research ReactorBNLResearch, development, and experimentsDecommissioned1968
Fast Flux Test FacilityHanford SiteResearch, development, and experimentsCore Drilled
UHTREXLANLResearch, development, and experimentsDecommissioned
Omega WestLANLResearch, development, and experimentsDecommissioned
ClementineLANLResearch, development, and experimentsDecommissioned
BREN TowerNevada Test SiteResearch, development, and experimentsDecommissioned
Demonstration Using Flattop Fission (DUFF)Nevada Test SiteResearch, development, and experimentsDecommissioned20122012
X-10 Graphite ReactorORNLResearch, development, and experimentsDecommissioned19431963
Homogeneous Reactor Experiment (HRE)ORNLResearch, development, and experimentsDecommissioned19521954
Homogeneous Reactor Test (HRT)ORNLResearch, development, and experimentsDecommissioned19571961
Aircraft Reactor Experiment (ARE)ORNLResearch, development, and experimentsDecommissioned19541955
Molten Salt Reactor Experiment (MSRE)ORNLResearch, development, and experimentsDecommissioned19651969
Health Physics Research Reactor (HPRR)ORNLResearch, development, and experimentsDecommissioned19631987
Low-Intensity Test Reactor (LITR)ORNLResearch, development, and experimentsDecommissioned19501968
Bulk Shielding Reactor (BSR)ORNLResearch, development, and experimentsDecommissioned19501987
Geneva Conference ReactorORNLResearch, development, and experimentsDecommissioned19551955
Tower Shielding Reactor-I (TSR-I)ORNLResearch, development, and experimentsDecommissioned19541958
Tower Shielding Reactor-II (TSR-II)ORNLResearch, development, and experimentsDecommissioned19581982
Oak Ridge Research Reactor (ORR)ORNLResearch, development, and experimentsDecommissioned19581987
High Flux Isotope ReactorORNLResearch, development, and experimentsOperational1965
Pool Critical AssemblyORNLResearch, development, and experimentsDecommissioned19581987
Experimental Gas Cooled Reactor (EGCR)ORNLResearch, development, and experimentsConstructed but never operated; project cancelled in 1966
HWCTR (Heavy Water Components Test Reactor)Savannah River SiteResearch, development, and experimentsDecommissioned
Sodium Reactor ExperimentSanta Susana Field LaboratoryResearch, development, and experimentsDecommissioned1964
SNAP-10ASanta Susana Field LaboratoryResearch, development, and experimentsDecommissioned; in low Earth orbit
Annular Core Research ReactorSandia National LaboratoriesResearch, development, and experimentsOperational
TRIGA Mark FBethesda, MarylandPoolResearch, development, and experimentsOperational1,0001962Armed Forces Radiobiology Research Institute
NIST reactorGaithersburg, MarylandTank type, heavy water moderatedResearch, development, and experimentsOperational20,0001967National Institute of Standards and Technology
TRIGA Mark IDenver, ColoradoPoolResearch, development, and experimentsOperational1,0001969U.S. Geological Survey
TRIGA Mark IOmaha, NebraskaPoolResearch, development, and experimentsDecommissioned; possession-only license19592001U.S. Veterans Administration
NASA reactors (2 reactors at site)Sandusky, OhioResearch, development, and experimentsDecommissioned; under decommission orders or license amendmentsNational Aeronautics and Space Administration
NS SavannahJames River Reserve Fleet, VirginiaMarine propulsion demonstration and goodwill visitsDecommissioned; possession-only licenseAtomic Energy Commission, Maritime Administration (MARAD), and Department of Commerce

Civilian (private and university) research and test reactors licensed to operate

OperatorLocationReactorPower (MW)Years operational
Aerotest Operations Inc.San Ramon, CaliforniaTRIGA Mark I0.251965 -
Brigham Young UniversityProvo, UtahAtomics International L770.000011967-1992
Colorado State UniversityFort Collins, COAGN-201 #1090.00000011957 - 1976
Dow Chemical CompanyMidland, MichiganTRIGA Mark I0.31967 -
General Electric CompanySunol, CaliforniaNuclear Test0.11957 -
Idaho State UniversityPocatello, IdahoAGN-201 #1030.0000051967 -
Iowa State UniversityAmes, IowaExperimental, instructional0.0031959-1998
Kansas State UniversityManhattan, KansasTRIGA Mark II1.251962 -
KodakRochester, New YorkCalifornium Neutron Flux Multiplier5.81975 - 2006
Massachusetts Institute of TechnologyCambridge, MassachusettsTank Type HWR Reflected (MITR-II)61958 -
Missouri University of Science and TechnologyRolla, MissouriPool (MSTR)0.21961 -
North Carolina State UniversityRaleigh, North CarolinaPulstar1(earlier reactors dating to 1953) 1973 -
Ohio State UniversityColumbus, OhioPool (modified Lockheed)0.51961 -
Oregon State UniversityCorvallis, OregonTRIGA Mark II (OSTR)1.11967 -
Penn State UniversityUniversity Park, PennsylvaniaTRIGA BNR reactor1.11955 -
Purdue UniversityWest Lafayette, IndianaLockheed (PUR-1)0.0011962 -
Reed CollegePortland, OregonTRIGA Mark I (RRR)0.251968 -
Rensselaer Polytechnic InstituteSchenectady, New YorkReactor critical facility0.0000151965-
Rhode Island Atomic Energy Commission/ University of Rhode IslandNarragansett, Rhode IslandGE pool21964 -
Texas A&M UniversityCollege Station, TXAGN-201M #106 - TRIGA Mark I (two reactors)1.000005 (2 reactors)1957 - , 1962 -
University of ArizonaTucson, AZTRIGA Mark I0.111958–2010
University of California-DavisSacramento, CaliforniaTRIGA Mark II, McClellan Nuclear Radiation Center2.31998 -
University of California, IrvineIrvine, CaliforniaTRIGA Mark I0.251969 -
University of FloridaGainesville, FloridaArgonaut (UFTR)0.11959 -
University of Maryland, College ParkCollege Park, MarylandTRIGA Mark I0.251960 -
University of Massachusetts LowellLowell, MassachusettsPool (UMLRR)11975 -
University of MissouriColumbia, MissouriGeneral Electric tank type MURR10 (expanding to 30 with NextGen MURR)1966 -
University of New MexicoAlbuquerque, New MexicoAGN-201M #1120.0000051966 -
University of Texas at AustinAustin, TexasTRIGA Mark II1.11992 -
University of UtahSalt Lake City, UtahTRIGA Mark I0.11975 -
University of Wisconsin–MadisonMadison, WisconsinTRIGA Mark I11961 -
Valar AtomicsOrangeville, UtahWard250 - High Temperature Gas Cooled Reactor0.1 (0.25)2026 -
Washington State UniversityPullman, WashingtonTRIGA conversion (WSUR)11961 -

Civilian (private and university) research and test reactors formerly licensed to operate

Research and test reactors under decommission orders or license amendments are authorized to decontaminate and dismantle their facility to prepare for final survey and license termination. Research and test reactors with possession-only licenses are not authorized to operate the reactor, only to possess the nuclear material on-hand. They are permanently shut down.

OperatorLocationReactorPowerStatus
General Atomics (2 reactors at site)San Diego, CaliforniaUnder decommission order(s) or license amendment(s)
Georgia Institute of TechnologyAtlanta, GAGeorgia Tech Research Reactor: heavy water moderated and cooled5 MWShut down and defueled due to safety concerns related to nearby 1996 Summer Olympics events. Decommissioning announcement July 1, 1997, reactor building remnants removed as of 2015.
University of Illinois at Urbana–ChampaignUrbana, IllinoisUnder decommission order(s) or license amendment(s)
University of MichiganAnn Arbor, MichiganUnder decommission order(s) or license amendment(s)
General Electric Company (3 reactors at site; two research and test reactors and one power reactor)Sunol, CaliforniaPossession-only license(s)
University at BuffaloBuffalo, New YorkRetired in 1994. Possession-only license(s).
Worcester Polytechnic InstituteWorcester, MassachusettsPossession-only license(s)
WestinghouseWaltz Mill Site; Madison, PATR-2; also known as the Westinghouse Test Reactor or Westinghouse Testing Reactor (WTR)Decommissioned

Civilian (private and university) research and test reactors in construction

Executive Order 14301 created DOE's Reactor Pilot Program, expediting advanced reactor testing outside national labs, targeting criticality for three test reactors by July 4, 2026. 11 Reactors are being developed as part of this program. This list is of the reactors already in construction.

OperatorLocationReactorPowerStatus
Aalo Atomics Inc.Idaho National Laboratory,Idaho Falls, IdahoAalo-X-Construction Started
Antares Nucelar Inc.Idaho National Laboratory,Idaho Falls, IdahoR1 Mark-0 Test reactor500 kWth / 150 kWeConstruction Started
Oklo Inc.-Pluto--
Radiant Industries Inc.DOME (Demonstration of Microreactor Experiments) facility, Idaho National Laboratory,Idaho Falls, IdahoKaleidos microreactor3 MWt / 1 MWeConstruction Started

Uruguay

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RU-1MontevideoPoolDecommissioned101978-04-20URR reactor - A small pool-type research reactor placed in Centro de Investigaciones Nucleares (CIN). In operation since the early 1970s up until 1997 when it was dismantled and returned to United States due to a 1997 law against use of nuclear energy in Uruguay.

Uzbekistan

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
IIN-3MTashkentHomog pulDecommissioned201975-12-01
WWR-SM TashkentTashkentTank wwrOperational10,0001959-09-10

Venezuela

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
RV-1San Antonio de los AltosPoolPermanent shutdown3,0001960-07-121994Venezuelan Institute for Scientific Research (IVIC)

Vietnam

NameLocationTypePurposeStatusThermal power [kW]Operation dateClosure dateOwner and operatorNotes
Dalat Research ReactorDa LatPool TRIGA Mark IIOperational5001963-02-26(supplied by USA 1963, shut down 1975, reactivated by USSR 1984)
Multipurpose Research ReactorDa LatPool, irtPlanned15,000

See also

Notes and references

External links

  • ICJT list[link removed]—includes the defunct