1CEA/DEN/CAD/DTN/STPA/LPC Kick off meeting 0ct. 09 - 2006 TW6-TSL-002 : ORE TBM OCCUPATIONAL...

0ct. 09 - 2006 1CEA/DEN/CAD/DTN/STPA/LPCKick off meeting

EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENT

TW6-TSL-002 : ORETBM OCCUPATIONAL

RADIATION EXPOSURE



TWO TYPES OF BREEDER BLANKET+ Associated loops and components are concerned

HCLL HCPB



MAIN OBJECTIVES

DR 5cm / 1m HCPB

DR 5cm / 1m HCLL

OCCUPATIONAL DOSE HCPB / HCLLOPERATIONAL, REPLACEMENT

OR DECOMISSIONING


EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTMAIN STEPS

ANALYSIS AND

INTEGRATION OF

GEOMETRYHCPB AND

HCLLQUALITATIVE

SPECIFIC ACTIVITY

OF COMPONENTS

QUANTITATIVESPECIFICACTIVITY

OF COMPONENTS

SELECTION ACCORDING

TO DOSIMETRYWEIGHT OF ACTIVATIONPRODUCTS


EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTAVAILABLE DOSIMETRY CALCULATION TOOLS

MICROSHIELD

SIMPLE GEOMETRIESONLY ONE RADIOACTIVE

GEOMETRY

MCNP (not foreseen inthis task)

COMPLEX GEOMETRIESMULTI RADIOACTIVE

GEOMETRIES


EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTDOSIMETRY CALCULATION

MICROSHIELD– Deterministic code

– Definition of simple source geometry (sphere, cube, wall)

– Only one radioactive source (including several radionuclides with all gamma rays of the selected nuclides)

– Possible use of multi shields (with simple geometries)

– Used by radiation protection groups at CEA

– Output results:

• Dose rate

• Equivalent dose rate


EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTPREPARATION OF FIRST CALCULATIONS ON HCLL

DR 5 cm / 1 m DR ß- 5 cmCHECK OF POTENTIAL IMPACT

DR WITH ALREADYDEFINED SHIELDINGS



DOSIMETRY CALCULATION

•NEEDED DATA FOR HCLL:

– GEOMETRIES (OK)

– SPECIFIC ACTIVITY: NEW VALUES MUST BE PROVIDED (including dosimetric weights)

– SAME DATA THAN LAST TASK

• EXCEL FILE WITH ALL RN :

– AT SHUTDOWN

– 5 DAYS

– 12 DAYS

– 1 YEAR

• FISPACT OUTPUT FILES COULD BE INTERESTING (with specific filter with 143 RNs)


EFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTEFDAEUROPEAN FUSION DEVELOPMENT AGREEMENTPREPARATION OF FIRST CALCULATION ON HCPB

GEOMETRY DESCRIPTION DOCUMENTS

MUST BE PROVIDED

RADIOACTIVE SPECTRUM MUST

BE DEFINED



DOSIMETRY CALCULATION

•NEEDED DATA FOR HCPB:

– GEOMETRIES

– SPECIFIC ACTIVITY: NEW VALUES MUST BE PROVIDED (including dosimetric weights)

– SAME DATA THAN LAST YEAR

• EXCEL FILE WITH ALL RN :

– AT SHUTDOWN

– 5 DAYS

– 12 DAYS

– 1 YEAR

• FISPACT OUTPUT FILES COULD BE INTERESTING (with specific filter with 143 RNs)



CONCLUSION

•CALCULATIONS WILL ALLOW TO RESPOND TO SAFETY CONCERNS AS A CONSERVATIVE APPROACH IS USED

•IT WILL GIVE AN INPUT DATA FOR DESIGN CHECK OF:

– HOTCELLS AND RADWASTE,

– TRANSPORT CASKS, …

•HOWEVER FOR BOTH HCLL AND HCPB THE LEVEL OF ENVELOPS COULD BE DIFFERENT

1CEA/DEN/CAD/DTN/STPA/LPC Kick off meeting 0ct. 09 - 2006 TW6-TSL-002 : ORE TBM OCCUPATIONAL...

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Transcript of 1CEA/DEN/CAD/DTN/STPA/LPC Kick off meeting 0ct. 09 - 2006 TW6-TSL-002 : ORE TBM OCCUPATIONAL...