| Country | Brazil, Federative Republic of |
| Facility Name | ARGONAUTA |
| Facility Number | BR-0003 |
| Status | OPERATIONAL |
| Last Updated | 2009/04/03 |
| General Data |
| Owner | COMISSAO NACIONAL DE ENERGIA NUCLEAR (CNEN) |
| Operator | INSTITUTO DE ENGENHARIA NUCLEAR (IEN) |
| Licensing | COMISSAO NACIONAL DE ENERGIA NUCLEAR, (CNEN) |
| Construction Date | 1963/07/07 |
| Criticality Date | 1965/02/20 |
| Safeguards | IAEA |
| Initial Cost | 200 K US$ |
| Annual Cost | 50 K US$ |
| Total Staff | 12 |
| No of Operators | 3 |
| Technical Data |
| Reactor Type | ARGONAUT |
| Thermal Power, Steady (kW) | 0.20 |
| Max Flux SS, Thermal (n/cm2-s) | 4.4E09 |
| Max Flux SS, Fast (n/cm2-s) | 8.9E09 |
| Thermal Power, Pulsed (MW) | 0.00 |
| Max Flux Pulsed, Thermal (n/cm2-s) | |
| Max Flux Pulsed, Fast (n/cm2-s) | |
| Moderator | LIGHT WATER |
| Coolant | LIGHT WATER |
| Natural Convection Cooling | YES |
| Forced Cooling | YES |
| Coolant Velocity in Core | 0.0113 M/S |
| Reflector | GRAPHITE |
| Reflector Number of Sides | 6 |
| Control Rods Material | CD |
| Control Rods number | 3 |
| Experimental Facilities |
| Horizontal Channels | 15 |
| Horizontal Max Flux (n/cm2-s) | 2.5E05 |
| Horizontal Use | IRRADIATIONS, SPECTROMETRY, NEUTRONRADIOGRAPHY and neutron tomography |
| Vertical Channels | 5 |
| Vertical Max Flux (n/cm2-s) | |
| Vertical Use | Exponential measurements |
| Core Irradiation Facilities | 1 |
| Core Max Flux (n/cm2-s) | 4.4E09 |
| Reflector Irradiation Facilities | |
| Loops Number | |
| Loops Max Flux | |
| Loops use |
| Fuel data |
| Origin of Fissile Material | USA |
| Enrichment Supplier | USA |
| Equilibrium Core Size | 8 |
| Plates per Element | 17 |
| Dimensions of Plates | 610X73X2.43 |
| Rods per Element | |
| Dimensions of Rods, mm | |
| Tubes per Element | |
| Dimensions of Tubes, mm | |
| Cladding Material | AL ALLOY |
| Cladding Thickness, mm | 0.28 & 0.46 |
| Fuel Material | |
| Fuel Thickness, mm | 1.87 |
| Uranium Density, g/cm3 | 1.8 U3O8 |
| Burnup on Discharge, max % | |
| Burnup Average, % | <1 |
| Last Shipment Year | |
| Last Receipt Year | |
| Fuel Fabricator | IPEN, BRAZIL |
| Utilization |
| Hours per Day | 8 |
| Days per Week | 5 |
| Weeks per Year | 43 |
| MW Days per Year | 0 |
| Materials/fuel test experiments | NO |
| Isotope Production | N/A |
| N/A | |
| Neutron Scattering | NO |
| Neutron Radiography | On-line beam hours: N/A |
| Neutron capture therapy | NO |
| Activation Analysis | N/A |
| N/A | |
| Transmutation | NO |
| Geochronology | NO |
| Teaching | Number of students: N/A |
| Training | Number of operators/experimenters trained: N/A |
| Other Uses | NO |
| Operating Experience |
| Reactor | Thermal Power | Date of | Operational for | |||
| Category | Type | kW | Criticality | Construction | Years | Months |
| TRAINING | ARGONAUT | 0.20 | 1965/02/20 | 1963/07/07 | 44 | 3 |