# Argonaut class reactor

The Argonaut class reactor is a design of small nuclear research reactor. Many have been built throughout the world, over a wide range of power levels. Its functions are to teach nuclear reactor theory, nuclear physics and for use in engineering laboratory experiments.

## Description

The original Argonaut (Argonne Nuclear Assembly for University Training) was built at Argonne National Laboratory and went critical for the first time on February 9, 1957. It was shut down in 1972. This reactor was rated for 10 kilowatts.
List of Argonaut-class research reactors in the world :
| Country | Facility Name | Institution | Thermal Power (kW) | Status | First criticality | Final shutdown |
| Australia | MOATA | Australian Atomic Energy Commission | 100 | Decommissioned | 01/04/1961 | 31/05/1995 |
| Austria | Siemens Argonaut Reaktor-Graz (SAR-Graz) | Graz University of Technology | 10 | Decommissioned | 17/05/1965 | 31/08/2004 |
| Brazil | Argonauta | Instituto de Engenharia Nuclear (IEN) | 0.2 | Operational | 20/02/1965 | – |
| France | Ulysse | CEA | 100 | Decommissioned | 23/07/1961 | 2007 |
| France | Réacteur Université de Strasbourg (RUS) | University of Strasbourg | 100 | Decommissioned | 1967 | 12/1997 |
| Germany | Rossendorfer Ringzonen Reaktor (RRR) | Strahlenschutz, Analytik und Entsorgung Rossendorf e.V. | 1 | Decommissioned | 16/12/1962 | 25/09/1991 |
| Germany | Schnell-Thermischen Argonaut-Reaktor (STARK) | Karlsruher Institut für Technologie | 0.01 | Decommissioned | 11/01/1963 | 03/1976 |
| Germany | AEG Prüfreaktor (PR-10) | Kraftwerk Union AG (KWU) | 0.18 | Decommissioned | 27/01/1961 | 1976 |
| Germany | Siemens Argonaut Reactor (SAR) | Technical University of Munich | 1 | Decommissioned | 23/06/1968 | 31/10/1968 |
| Italy | Reattore Bologna Due (RB-2) | AGIP Nucleare | 10 | Decommissioned | 28/05/1963 | 12/1980 |
| Japan | University Test Reactor (UTR) | Kinki University | 0.001 | Operational | 11/11/1961 | – |
| Netherlands | Low Flux Reactor (LFR) | Nuclear Research and Consultancy Group | 30 | Decommissioned | 28/08/1960 | 12/2010 |
| Netherlands | Atoomreactor THE NEderland (ATHENE) | Eindhoven University of Technology | 10 | Decommissioned | 03/02/1969 | 1973 |
| Spain | Argos Research Reactor | Polytechnic University of Catalonia | 1 | Decommissioned | 11/06/1962 | 06/09/1977 |
| Spain | Argonaut Reactor Bilbao (ARBI) | University School of Technical Industrial Engineering of Bilbao | 10 | Decommissioned | 26/02/1962 | 1974 |
| Taiwan | Tsing Hua Argonaut Reactor (THAR) | National Tsing Hua University | 10 | Decommissioned | 20/04/1974 | 05/1991 |
| UK | Neutron Source Thermal Reactor (NESTOR) | AEE Winfrith | 30 | Decommissioned | 01/01/1961 | 06/1995 |
| UK | Jason | Royal Naval College | 10 | Decommissioned | 30/09/1959 | 07/1996 |
| UK | UTR-300 | Scottish Universities Research and Reactor Centre | 300 | Decommissioned | 01/06/1963 | 09/1995 |
| UK | UTR-B | Queen Mary University of London | 100 | Decommissioned | 10/06/1968 | 04/1982 |
| UK | Universities Research Reactor | University of Liverpool Victoria University of Manchester | 300 | Decommissioned | 07/07/1964 | 07/1991 |
| USA | University of Florida Training Reactor (UFTR) | University of Florida | 100 | Operational | 28/05/1959 | – |
| USA | UTR Test Reactor | American Radiator and Standard Sanitary Corporation | 0.015 | Decommissioned | 01/12/1961 | 1963 |
| USA | University Teaching and Research Reactor (UTR-1) | American Radiator and Standard Sanitary Corporation | 0.001 | Decommissioned | 01/02/1958 | 1960 |
| USA | Juggernaut | Argonne National Laboratory | 250 | Decommissioned | 11/01/1962 | 04/1970 |
| USA | UTR-10 | Virginia Tech | 100 | Decommissioned | 01/12/1959 | 1984 |
| USA | UTR-10 | Iowa State University | 10 | Decommissioned | 01/10/1959 | 05/1998 |
| USA | UWNR | University of Washington | 100 | Decommissioned | 01/04/1961 | 06/1988 |
| USA | UCLA R1 | UCLA | 100 | Decommissioned | 01/10/1960 | 01/1984 |