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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 - PowerPoint PPT Presentation
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Benoît BrichardInstrumentation DepartmentTel: +32 14 33 34 45Secr: +32 14 33 34 40Fax: +32 14 32 13 [email protected]
IRRADIATION FACILITIES at SCKCEN
Nuclear Belgian Research CenterBoeretang, 200
2400 MolBelgium
Ooms HansInstrumentation DepartmentTel: +32 14 33 24 66Secr: +32 14 33 24 07Fax: +32 14 32 05 13 [email protected]
2
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
3
The irradiation facilities of SCKCEN cover a wide range of radiation processing and nuclear applications
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Low Gamma Dose RateIrradiation Facilities
GEUSE II
RITA
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Large irradiation volume with moderate dose-rate
Under water facility
Temperature up to 150 °C Inert gas or air On-line instrumentation facilities
0.5 => 1.5 kGy/hDose Rate
Energy (MeV)
Rela
tive I
nte
nsit
y
60Co - spectrum
380 mm
600 mm
RITA
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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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Temperature up to 200 °CInert gas or airOn-line instrumentation facilities
Under water view
Large irradiation volume with moderate dose-rateGEUSE II
10 => 500 Gy/hDose Rate
Energy (MeV)
Rela
tive I
nte
nsit
y
137Cs - spectrum
380 mm
900 mm
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•Design for polymer irradiation
200 mm
600 m
m
Pre
ssu
re (
mb
ar)
Time (h)
10-6 mbar
•Active low-vacuum
VSM Vacuum System Module for RITA and GEUSE II
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High Gamma Dose RateIrradiation Facilities
The four irradiation positions are located in the BR2 containment building
B
BRIGITTE
A1
CMF A1
A2
CMF A2
C3
KIRSTEN
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Side view
BRIGITTELarge irradiation volume
at high dose-rate
0.5 => 25 kGy/hDose Rate
Energy (MeV)
Rela
tive I
nte
nsit
y
60Co - spectrum
220 mm900
mm
Container open
Temperature up to 200 °C Inert gas or air On-line instrumentation facilities
11
Polymer irradiation Testing in Brigitte
12
Medium irradiation volumeat high dose-rate
CMF-A1CMF-A2
Temperature up to 200 °C Inert gas or air On-line instrumentation facilities
80 mm
Open Capsule with heater
900
mm
Capsule
0.5 => 20 kGy/hDose Rate
Energy (MeV)
Rela
tive I
nte
nsit
y
60Co - spectrum
13
Small irradiation volumeat high dose-rateKIRSTEN
No control of environmental parameters Uniform dose rate over 100 mm Only temperature monitoring
35 mm
200
mm
80 kGy/h (57 MGy/Month)
Dose Rate
Energy (MeV)
Rela
tive I
nte
nsit
y
60Co - spectrum
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• Available Volume
2 m3
Climate Chamber for ageing testsCLARA
•Humidity control
10 to 98 %
•Temperature control
-36 to 180 °C
• Convenient Facility for pos-irradiation temperature testing
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• Room temperature control at 21°C
• Atmosphere and humidity control
Low dose-rate irradiation facilityCAL
Bunker Inside View Output Source View
• 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/g[Al]
Thermal Flux
2.8x1014
Gamma Heating
Core
Reflector
7x1014
Fast Flux(En > 0.1 MeV)
7x1014 7x1014
200 mm
< 50 mm
200 mm
84 mm
50 mm
10-15 W/g
7x1013
1.4x1014
7x1012
2.8x1014
2.4x1014
1-4 W/g
SIDONIE
Moving Irradiation Rig
1x1014
5 x 1013 ~ 3 W/g6x1013
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BR1: Gas Cooled reactor – 700 kW to 1MW
•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
BR1, operated on day by day basis
External Cavity – 1 m diameter• load with uranium sphere•Fast Flux 2-4 x 108 n/cm2
• possibility for Gamma Converter
Standard value at 700 kW
