Research Reactor Details - CROCUS


Country Switzerland (Swiss Confederation)
Facility Name CROCUS
Facility Number CH-0003
Status OPERATIONAL
Last Updated 2001/05/23


General Data
Owner  LABORATOIRE DE PHYSIQE DES REACTEURS
Operator  SWISS FEDERAL INSTITUTE OF TECHOLOGY, LAUSANNE
Licensing  SWISS NUCLEAR SAFETY DIVISION
Construction Date  1979/01/01
Criticality Date  1983/07/13
Safeguards  IAEA
Initial Cost
Total Staff 8
No of Operators 2


Technical Data
Reactor Type CRIT ASSEMBLY
Thermal Power, Steady (kW) 0.10
Max Flux SS, Thermal (n/cm2-s) 7.50E8
Max Flux SS, Fast (n/cm2-s) 1.75E9
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
Forced Cooling
Coolant Velocity in Core 160 L/M
Reflector H2O
Reflector Number of Sides 4
Control Rods Material SS
Control Rods number 2


Experimental Facilities
Horizontal Channels
Horizontal Max Flux (n/cm2-s)
Horizontal Use
Vertical Channels
Vertical Max Flux (n/cm2-s)
Vertical Use
Core Irradiation Facilities 1
Core Max Flux (n/cm2-s) 2.5E9
Reflector Irradiation Facilities 1
Loops Number
Loops Max Flux
Loops use


Fuel data
Origin of Fissile Material USA
Enrichment Supplier USA
Equilibrium Core Size 512 RODS
Plates per Element
Dimensions of Plates
Rods per Element
Dimensions of Rods, mm 12.6,19.35 D
Tubes per Element
Dimensions of Tubes, mm
Cladding Material AL ALLOY
Cladding Thickness, mm 0.85 OR 1.0
Fuel Material UO2 - U METAL
Fuel Thickness, mm
Uranium Density, g/cm3 10.55 OR 18.67
Burnup on Discharge, max %
Burnup Average, %
Last Shipment Year
Last Receipt Year
Fuel Fabricator IND. CO. FOR NUCLEAR FUEL, SWITZERLAND


Utilization
Hours per Day  5
Days per Week  3
Weeks per Year  28
MW Days per Year  0
Materials/fuel test experiments  Number of runs: 5
Isotope Production  NO
Neutron Scattering  NO
Neutron Radiography  NO
Neutron capture therapy  NO
Activation Analysis  NO
Transmutation  NO  
Geochronology  NO
Teaching  Number of students: 150
Training  Number of operators/experimenters trained: 1
Other Uses  NO


Operating Experience
Reactor Thermal Power Date of Operational for
Category Type kW Criticality Construction Years Months
 TRAINING  CRIT ASSEMBLY  0.10  1983/07/13  1979/01/01  26  7