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 Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes Nur Algiers Pool   Temporary shutdown 1,000 1989-03-24 Centre de Dévéloppement des Techniques Nucléaires   Es Salam Aïn Oussera, Djelfa Heavy water   Operational 15,000 1992-02-17   Centre de Recherche Nucléaire de Birine (CRNB)  

Antarctica + Nuclear research reactors in Antarctica Name Location Reactor type Purpose Status Capacity (kW) Construction start date Operation date Closure Operator and owner PM-3A NNPU "Nukey Poo" McMurdo Station Power reactor Shut down 1,800 1962 1972-09, fully dismantled 1979 US Navy

Argentina

+ Nuclear research reactors in Argentina Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes RA-10 Buenos Aires Pool Under construction 30,000 (late 2023) National Atomic Energy Commission RA-4 Rosario Homog (S) Operational 0.00 1972-01-01 National University of Rosario RA-2 Buenos Aires Crit assembly Decommissioned 0.03 1966-07-01 National Atomic Energy Commission RA-8 San Carlos de Bariloche Crit assembly Temporary shutdown 0.01 1997-06-17 National Atomic Energy Commission RA-1 Enrico Fermi Buenos Aires Tank Operational 40 1958-01-20 National Atomic Energy Commission CAREM 25 Lima Pwr propulsion Under construction 100,000 National Atomic Energy Commission RA-6 San Carlos de Bariloche Pool Operational 500 1982-09-23 National Atomic Energy Commission RA-0 Córdoba Tank Operational 0.01 1965-01-01 National University of Córdoba RA-3 Ezeiza Pool Operational 10,000 1967-05-17 National Atomic Energy Commission

Australia

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes OPAL Lucas Heights Pool See notes below table. Operational 20,000 2006-08-12 ANSTO LWR CF Lucas Heights Crit assembly Decommissioned 0.00 1973-03-01 ANSTO (formerly Australian Atomic Energy Commission) HIFAR Lucas Heights Heavy water Permanent shutdown 10,000 1958-01-26 2007-01-30 ANSTO (formerly Australian Atomic Energy Commission) DIDO class MOATA Lucas Heights Argonaut Decommissioned 100 1961-04-01 2009 ANSTO (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 Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes ASTRA Vienna Pool Decommissioned 10,000 1960-09-24 1999 Austrian Research Centers at Seibersdorf SAR-Graz Graz Argonaut Decommissioned 10 1965-05-17 2004 Reactor Institute of the Technical Universities in Graz TRIGA II VIENNA Vienna TRIGA Mark II Operational 250 1962-03-07 Atomic Institute of the Austrian Universities in Vienna

Bangladesh

+ Nuclear research reactors in Bangladesh Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes BTRR, BAEC TRIGA Research Reactor Savar, Dhaka TRIGA Mark II Operational 3,000 1986-09-14 Atomic Energy Research Establishment (Bangladesh)

Belarus

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes IRT-M Minsk Sosny, Minsk Pool, irt Decommissioned 5000 1962-04-01 1988 IRT research reactor Kristal Sosny, Minsk Crit assembly Extended shutdown 0   YALINA-Thermal Sosny, Minsk Subcrit Operational 0 2000-01-01 Giacint Sosny, Minsk Crit assembly Operational 0 2009-01-01 YALINA-Booster Sosny, Minsk Subcrit Operational 0 2005-05-30 "Pamir" Sosny, Minsk Subcrit Shut down 1986 mobile nuclear power reactor test

Belgium

GUINEVERE – fast, accelerator driven, lead-cooled reactor at SCK•CEN, Mol Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes VENUS-F Mol Crit assembly Operational 0.10 1964-04-30 zero power critical facility, converted to GUINEVERE, at SCK•CEN, Mol BR-1 Mol Graphite Operational 1,000 1956-05-11 4MWt air-cooled, graphite moderated research reactor at SCK•CEN, Mol BR-2 Mol Tank in pool Operational 100,000 1961-06-29 125MWt water-cooled, beryllium moderated material testing research reactor at SCK•CEN, Mol MYRRHA Mol Fast Planned 85,000   BR-3 Mol Pwr power Decommissioned 40,900 1962-08-29 11MWe PWR reactor (shut down and fully decommissioned) at SCK•CEN, Mol BR-02, Mock-up of BR2 Mol Pool Decommissioned 0.50 1959-12-01 THETIS RR-BN-1 Ghent Pool Decommissioned 250 1967-04-07 250kWt pool type reactor (shut down and fully decommissioned) at Ghent university ()

Brazil

+ Nuclear research reactors in Brazil Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes Argonauta Rio de Janeiro Argonaut Operational 0.20 1965-02-20 - IEN - Instituto de Engenharia Nuclear IEA-R1 São Paulo Pool Operational 6,000 1957-09-16 - IPEN - Instituto de Pesquisas Energéticas e Nucleares TRIGA IPR-R1 Belo Horizonte Pool (TRIGA Mark I) Education, research, training and production of radioisotopes Operational 100* 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 Brasileiro Iperó(CTMSP - Centro Tecnológico da Marinha em São Paulo) Pool Operational 35,000 1978-05-21 - Amazul S.A.; CNEN - Comissão Nacional de Energia Nuclear IPEN/MB-01 São Paulo Pool Operational 0.10 1988-11-09 - IPEN - Instituto de Pesquisas Energéticas e Nucleares

Bulgaria

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes IRT-Sofia Sofia Pool, irt Permanent shutdown 2,000 1961-09-18 2009 Bulgarian Academy of Sciences  

Canada

+Nuclear research reactors in CanadaNameReactor typeStatusCapacityOperation dateClosureOperator and ownerNotesMAPLE 1Medical isotope production reactor20002008Chalk River LaboratoriesIncomplete commissioning, never completed testing. However, criticality was achievedMAPLE 2Medical isotope production reactor20032008Chalk River LaboratoriesIncomplete commissioning, never completed testing. However, criticality was achievedNRUHeavy water cooled/moderated135 MW19572018Chalk River LaboratoriesNRXHeavy water moderated, light water cooled42 MW19471993Chalk River LaboratoriesOne of the highest flux reactors in the world until shut downSLOWPOKE-1 prototypePool Type5 kWChalk River Laboratories, University of TorontoThe prototype was moved to the University of Toronto in 1971PTRPool type1990Chalk River LaboratoriesZED-2200 Wth1960Chalk River LaboratoriesZEEPHeavy water019451973Chalk River LaboratoriesThe first nuclear reactor in Canada, and first outside the United StatesWR-1Organically cooled CANDU19651985Whiteshell LaboratoriesCoolant leak of 2,739 litres in Nov. 1978.SLOWPOKE-3 demonstrationPool type2 MWth19871989Whiteshell LaboratoriesSLOWPOKE-2Pool type019812017 (start of decommissioning)Saskatchewan Research CouncilOn 17 January 2018, the reactor surpassed 20,000 hours of operation.SLOWPOKE-2Pool type20 kW19841989NordionSLOWPOKE-2 prototypePool type20 kW1971Tunney's PastureSLOWPOKE-2Pool type20 kW1976Dalhousie UniversitySLOWPOKE-2Pool type01976École Polytechnique de MontréalMcMaster Nuclear ReactorSLOWPOKE-2 pool type5 MWth1959McMaster UniversitySLOWPOKE-2Pool type20 kW1985Royal Military CollegeSLOWPOKE-2Pool type20 kW19772017University of AlbertaSLOWPOKE-2Pool type20 kW19762001University of TorontoRebuilt from SLOWPOKE-1

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes Ecole Polytechnique Subcritical Assembly Montreal Subcrit Decommissioned 0.00 1974-01-01 SLOWPOKE-2, Kanata Ottawa Slowpoke-2 Decommissioned 20 1984-06-06 PTR Chalk River Pool Decommissioned 0.10 1957-11-01 SLOWPOKE-2, Halifax Halifax Slowpoke-2 Decommissioned 20 1976-07-08 WR-1 Pinawa Heavy water Under decommissioning 60,000 1965-11-01 SLOWPOKE-2, Toronto Toronto Slowpoke-2 Decommissioned 20 1971-06-05 SLOWPOKE, Alberta Edmonton Slowpoke-2 Under decommissioning 20 1977-04-22 ZEEP Chalk River Heavy water Decommissioned 0.00 1945-09-01 SLOWPOKE-2, RMC Kingston Slowpoke-2 Operational 20 1985-09-06 NRU Chalk River Heavy water Permanent shutdown 135,000 1957-11-03 MAPLE 1 Chalk River Tank in pool Permanent shutdown 10,000   MAPLE 2 Chalk River Tank in pool Permanent shutdown 10,000   NRX Chalk River Heavy water Permanent shutdown 42,000 1947-07-22 SLOWPOKE-2, Montreal Montreal Slowpoke-2 Operational 20 1976-05-01 SRC SLOWPOKE, Saskatchewan Saskatoon Slowpoke-2 Permanent shutdown 20 1981-03-01 SDR SLOWPOKE Demo Reactor Pinawa Heating prot Decommissioned 2,000 1987-07-15 ZED-2 Chalk River Tank Operational 0.20 1960-09-07 MNR McMaster University Hamilton Pool, mtr Operational 3,000 1959-04-04

Chile

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes RECH-1 Santiago Pool Operational 5,000 1974-10-13 Chilean Nuclear Energy Commission (CChEN) RECH-2 Santiago Pool Extended shutdown 2,000 1989-09-06 Chilean 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

Name Location Type Purpose Status Thermal power [kW] Operation date Closure date Owner and operator Notes MNSR IAE Beijing Mnsr Operational 27 1984-03-10 IHNI-1 Beijing Mnsr Operational 30 2009-12-07 ZPR Fast Beijing Crit fast Extended shutdown 0.05 1970-06-29 MNSR-SH Shanghai Mnsr Decommissioned 30 1991-12-18 MNSR-SD Jinan Mnsr Decommissioned 33 1989-05-01 HWRR-II Beijing Heavy water Under decommissioning 15,000 1958-09-01 VENUS-1 Beijing Subcrit Operational 0.00 2005-07-18 CARR Beijing Tank in pool Operational 60,000 2010-05-13 CEFR Beijing Fast breeder Operational 65,000 2010-07-21 Chinese 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-SZ Shenzhen Mnsr Operational 30 1988-11-01 SPR IAE Beijing Pool Operational 3,500 1964-12-20 CMRR (China Mianyang Research Reactor) Mianyang Pool Operational 20,000 2013-09-01 HTR-10 Beijing High temp gas Operational 10,000 2000-12-21 MJTR Chengdu Pool Operational 5,000 1991-03-02 ESR-901 Beijing Pool-2 Cores Operational 1,000 1964-10-01 NHR-5 Beijing Heating Prot Operational 5,000 1989-11-03 SPRR-300 Chengdu Pool Operational 3,000 1979-06-28 HFETR Critical Chengdu Crit assembly Operational 0.00 1979-06-20 PPR PULSING Chengdu Pool, uzrh Operational 1,000 1990-08-01 HFETR Chengdu Tank Operational 125,000 1979-12-27 Zero Power Reactor Chengdu Crit assembly Permanent shutdown 0.00 1966-01-01 TMSR-SF1 Shanghai Experimental Planned 10,000   TMSR-LF1 Shanghai Experimental Planned 2,000   TFHR Thorium Pebble Bed Shanghai Experimental Planned 2,000  

Democratic Republic of the Congo