Transcript No Slide Title

IRRADIATION FACILITIES at SCKCEN
Nuclear Belgian Research Center
Boeretang, 200
2400 Mol
Belgium
Benoît Brichard
Instrumentation Department
Tel: +32 14 33 34 45
Secr: +32 14 33 34 40
Fax: +32 14 32 13 36
[email protected]
www.sckcen.be
Ooms Hans
Instrumentation Department
Tel: +32 14 33 24 66
Secr: +32 14 33 24 07
Fax: +32 14 32 05 13
[email protected]
www.sckcen.be
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
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
0.5 kGy/h
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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 Rate
Irradiation Facilities
GEUSE II
RITA
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RITA
Large irradiation volume
with moderate dose-rate
Relative Intensity
Dose Rate
0.5 => 1.5 kGy/h



60Co
Under water facility
- spectrum
380 mm
 Energy (MeV)
600 mm
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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GEUSE II
Large irradiation volume
with moderate dose-rate
Relative Intensity
Dose Rate
10 => 500 Gy/h
137Cs
- spectrum
Under water view
900 mm
 Energy (MeV)
380 mm
Temperature up to 200 °C
Inert gas or air
On-line instrumentation facilities
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VSM
Vacuum System Module
for RITA and GEUSE II
•Design for polymer irradiation
200 mm
Pressure (mbar)
600 mm
•Active low-vacuum
10-6 mbar
Time (h)
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High Gamma Dose Rate
Irradiation Facilities
CMF A2
CMF A1
A2
A1
B
BRIGITTE
C3
KIRSTEN
The four irradiation positions are located
in the BR2 containment building
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BRIGITTE



60Co
Side view
Container open
- spectrum
 Energy (MeV)
900 mm
Relative Intensity
Dose Rate
0.5 => 25 kGy/h
Large irradiation volume
at high dose-rate
220 mm
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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CMF-A1
CMF-A2
Medium irradiation volume
at high dose-rate



60Co
Capsule
Open Capsule
with heater
- spectrum
900 mm
Relative Intensity
Dose Rate
0.5 => 20 kGy/h
 Energy (MeV)
80 mm
Temperature up to 200 °C
Inert gas or air
On-line instrumentation facilities
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KIRSTEN
Small irradiation volume
at high dose-rate
Dose Rate
80 kGy/h



60Co
- spectrum
200 mm
Relative Intensity
(57 MGy/Month)
 Energy (MeV)
No control of environmental parameters
Uniform dose rate over 100 mm
Only temperature monitoring
35 mm
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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 posirradiation temperature testing
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CAL
Low dose-rate
irradiation facility
Bunker Inside View
• Room temperature control at 21°C
Output Source View
• Max Dose Rate: 1 Gy/h
• Atmosphere and humidity control
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Material Testing Reactor – BR2
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BR2: Material Testing Reactor – 56 MW
Neutronic Performances in n/cm2s and Gamma Heating W/g[Al]
Thermal Flux
Fast Flux
(En > 0.1 MeV)
Gamma
Heating
Core
200 mm
2.8x1014
7x1014
< 50 mm
7x1014
7x1014
10-15 W/g
Reflector
200 mm
2.4x1014
7x1013
84 mm
2.8x1014
1.4x1014
50 mm
1x1014
SIDONIE
Moving Irradiation Rig
6x1013
1-4 W/g
7x1012
5 x 1013
~ 3 W/g
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BR1: Gas Cooled reactor – 700 kW to 1MW
Standard value at 700 kW
BR1,
operated on day by day basis
•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
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
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