IRRADIATION FACILITIES at SCK?CEN Nuclear Belgian Research Center Boeretang, 200 2400 Mol Belgium

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IRRADIATION FACILITIES at SCK?CENNuclear
Belgian Research CenterBoeretang, 2002400
MolBelgium
Benoît Brichard Instrumentation Department Tel
32 14 33 34 45 Secr 32 14 33 34 40 Fax
32 14 32 13 36 bbrichar_at_sckcen.be www.sckcen.be
Ooms Hans Instrumentation Department Tel 32
14 33 26 57 Secr 32 14 33 26 07 Fax 32 14
31 19 93 hooms_at_sckcen.be www.sckcen.be
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Quick overview

• Gamma Facilities
• I. Cobalt-60
• KIRSTEN 80 kGy/h
• BRIGITTE 25 kGy/h
• CMFA1 20 kGy/h
• CMFA2 20 kGy/h
• RITA 2 kGy/h
• CAL 3 Gy/h
• II. Spent Fuels
• GEUSE II 0.5 kGy/h

• Neutron Facilities
• I. BR1
• Maximum Thermal flux
• 3x1011 n/cm2s
• II. BR2
• Maximum Thermal flux
• 1x1015 n/cm2s
• Maximum Fast Flux
• 7x1014 n/cm2s
• Installations
• Air cooled design
• Vacuum design

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The irradiation facilities of SCK?CEN cover a
wide range of radiation processing and nuclear
applications
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Low Gamma Dose RateIrradiation Facilities
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• Large irradiation volume with moderate dose-rate

RITA

• Temperature up to 150 C
• Inert gas or air
• On-line instrumentation facilities

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CRISTALES In-pile section for photonics
assessment

• Standard on line instrumentation
• 3 thermocouples type K
• Heating element
• Signal cables
• Rinsing of the chamber
• Extra on line instrumentation
• Fibers
• Coax, extra thermocouples
• Power cables
• Instrumentation on demand

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Large irradiation volume with moderate dose-rate
GEUSE II
Dose Rate
10 gt 500 Gy/h
137Cs - spectrum
Relative Intensity
? Energy (MeV)
Temperature up to 200 C Inert gas or air On-line
instrumentation facilities
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Vacuum System Module for RITA and GEUSE II
VSM

• Design for polymer irradiation

• Active low-vacuum

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High Gamma Dose RateIrradiation Facilities
The four irradiation positions are located in
the BR2 containment building
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Large irradiation volume at high dose-rate
BRIGITTE

• Temperature up to 200 C
• Inert gas or air
• On-line instrumentation facilities

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Polymer irradiation Testing in Brigitte
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Medium irradiation volume at high dose-rate
CMF-A1 CMF-A2

• Temperature up to 200 C
• Inert gas or air
• On-line instrumentation facilities

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Small irradiation volume at high dose-rate
KIRSTEN
Dose Rate
80 kGy/h (57 MGy/Month)

• No control of environmental parameters
• Uniform dose rate over 100 mm
• Only temperature monitoring

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CLARA
Climate Chamber for ageing tests

• Available Volume
• 2 m3

• Temperature control
• -36 to 180 C

• Humidity control
• 10 to 98

• Convenient Facility for pos-irradiation
  temperature testing

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Low dose-rate irradiation facility
CAL
Bunker Inside View
Output Source View

• Room temperature control at 21C
• Atmosphere and humidity control

• Max Dose Rate 1 Gy/h

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Material Testing Reactor BR2
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BR2 Material Testing Reactor 56 MWNeutronic
Performances in n/cm2s and Gamma Heating W/gAl
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BR1 Gas Cooled reactor 700 kW to 1MW
Standard value at 700 kW

• Graphite moderator
• Typical temperature 40 C -70 C
• Neutron and gamma standard fields
• Thermal flux 3.5x1011n/cm2s
• Fast Flux 2 x 1010 n/cm2s

BR1, operated on day by day basis
FUNIN Fast neutron boost module

• Fast Neutron in Y6 channel
• 1011 n/cm2 s
• U-235 fission spectrum
• Volume 80 mm2

• External Cavity 1 m diameter
• load with uranium sphere
• Fast Flux 2-4 x 108 n/cm2
• possibility for Gamma Converter