Accident Considerations
Minimizing Waste
Worker Dose Limits and Administrative Guidelines
|
Previous Slide
Accident Considerations
|
Next Slide Minimizing Waste
|
Worker Dose Limits
|
Proposal |
Value
|
Comment |
|
Limit for annual individual worker doses |
50 mSv and 20 mSv averaged over 5 yrs |
IAEA proposal. (Also consistent with EUR: European Utility Requirements for future fission plants. Similar to US DOE rqmts) |
Administrative Guidelines
|
Proposal |
Value
|
Comment |
|
Administrative guideline for annual individual worker doses |
5 mSv |
Consistent with EUR. Typically Facility Limits are 10 times smaller compared to limits. (factor 4 smaller than ITER FDR) |
|
ALARA threshold for activities with doses larger than |
0.5 mSv/shift |
Dose guideline for single shift should be 10 times smaller compared to annual dose guideline (factor 4 smaller than ITER FDR) |
|
ALARA threshold for dose rates |
100 micro-Sv/h |
|
|
Collective annual worker dose target averaged over life time of plant |
0.5 man-Sv |
EUR target: 0.7 man-Sv/GWe |
|
ALARA review of all activities exceeding collective worker dose |
30 person mSv/yr |
Collective dose target for each activity |
10 mSv = 1 Rem; 100 micro-Sv/hr = 10 mrem/hr