Research Reactor Details - RA-3

Country Argentina (Argentine Republic)
Facility Name RA-3
Facility Number AR-0002
Last Updated 2010/02/10

General Data
Operator  RA-3 REACTOR
Licensing  ARN
Construction Date  1963/02/01
Criticality Date  1967/05/17
Safeguards  AIEA/ABACC
Initial Cost 10 M US$
Annual Cost 1.2 M US$
Total Staff 60
No of Operators 20

Technical Data
Reactor Type POOL
Thermal Power, Steady (kW) 10,000.00
Max Flux SS, Thermal (n/cm2-s) 8E13
Max Flux SS, Fast (n/cm2-s) 2.5E14
Thermal Power, Pulsed (MW) 0.00
Max Flux Pulsed, Thermal (n/cm2-s)
Max Flux Pulsed, Fast (n/cm2-s)
Natural Convection Cooling if <400kW
Forced Cooling YES, max. flow 1350m3/h
Coolant Velocity in Core 4.2 M/S
Reflector GRAPHITE
Reflector Number of Sides 4
Control Rods Material AG,IN,CD
Control Rods number 4, EACH WITH 2 BLADES

Experimental Facilities
Horizontal Channels 7
Horizontal Max Flux (n/cm2-s) 1.0E07
Horizontal Use research in BNCT
Vertical Channels 6
Vertical Max Flux (n/cm2-s) 2.2e14
Vertical Use radioisotope production, NAA, fuel & material studies
Core Irradiation Facilities 5
Core Max Flux (n/cm2-s) 2.2e14
Reflector Irradiation Facilities 1
Loops Number 2 removable rigs
Loops Max Flux
Loops use 2 removable rigs with controled temperature for irradiation demage studies

Fuel data
Origin of Fissile Material USA
Enrichment Supplier USA
Equilibrium Core Size 27
Plates per Element 19
Dimensions of Plates 1.5X70.5X755
Rods per Element
Dimensions of Rods, mm
Tubes per Element
Dimensions of Tubes, mm
Cladding Material AL ALLOY
Cladding Thickness, mm 0.4
Fuel Material UO2-AL
Fuel Thickness, mm 0.7
Uranium Density, g/cm3 2.99
Burnup on Discharge, max % 55
Burnup Average, % 28
Last Shipment Year 2009
Last Receipt Year 2009
Fuel Fabricator CNEA, ARGENTINA

Hours per Day  24
Days per Week  5
Weeks per Year  46
MW Days per Year  1230
Materials/fuel test experiments  Number of runs: 2
Isotope Production  Mo-99, I-131, Cr-51, Sm-153, Ir-192
  • Total Activity (GBq)
  •  851000
    Neutron Scattering  NO
    Neutron Radiography  NO
    Neutron capture therapy  Patients irradiated: N/A
    Activation Analysis  N/A
  • number of samples irradiated
  •  105
    Transmutation  NO  
    Geochronology  NO
    Teaching  NO
    Training  Number of operators/experimenters trained: 6
    Other Uses  BNCT for animals and human cells

    Operating Experience
    Reactor Thermal Power Date of Operational for
    Category Type kW Criticality Construction Years Months
     RESEARCH  POOL  10000.00  1967/05/17  1963/02/01  43  9