Document: NUREG-0800
Document ID: 723c7d66-7b0b-443a-af9b-ec3026461a0c
Document Type: srp
Title: - 12.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1130/ML113081427.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
for the review of SRP Chapter 11 will evaluate the adequacy of the process and effluent radiation monitoring (e.g., sensitivity, range, system placement) design. 2. RG 1.97, Revision 4, as referenced above, provides detailed guidance and criteria for post accident radiation monitoring instrumentation. Revision 4 to the RG provides a method for applying this guidance to the specific proposed design. The staff will coordinate the review of the radiation monitoring systems with the instrumentation and control and emergency preparedness review staff to ensure that adequate radiation detection instrumentation is provided for plant monitoring under accident conditions. 3. The health physics staff will evaluate the adequacy of the applicant’s shielding design on the basis of acceptable radiation shielding practices and calculation methods. Based on its review of the plant layout drawings and radiation zoning, the health physics staff may verify, by independent calculations, the adequacy of the shielding design for selected areas of the plant. The review should emphasize areas in the plant that have a potential to become a significant high radiation area (greater than 1 Gy (100 rads) per hour) or a very high radiation area during operations and anticipated operational occurrences. These areas include, but are not limited to, those exposed to gamma shine from steam components in BWR designs (both onsite occupational and offsite public exposure concerns); areas providing access to the spent fuel transfer tube during fuel transfer; the below-vessel reactor cavity, in certain PWR designs, with in-core thimble tubes withdrawn; and the upper drywell, in BWR designs, during fuel movements. Appendix B to RG 8.38 includes guidance on some of these areas. 4. For the OL FSAR, the reviewer will consider any changes in the design that might necessitate changes in operating procedures to accommodate a changed radiation zone or a different location of equipment. 5. The reviewer will