Document: NUREG-0800
Document ID: 9f9f8fe1-9b66-460c-b928-6d1644a23c4c
Document Type: srp
Title: RADIATION PROTECTION - INSPECTIONS, TESTS, ANALYSES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550022.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.8
CFR Part: 
CFR Title: 

Content:
al depend on as-built and as-procured information about plant systems and components. Therefore, applicants may be unable to describe the standard design’s radiation source terms (i.e., the quantity and 14.3.8-5 March 2007 14.3.8-5 March 2007 concentration of radioactive materials contained in, or leaking from, plant systems) in sufficient detail to allow the staff to verify the adequacy of the shielding design, ventilation system designs, or the design and placement of the airborne radioactivity monitors. Instead, applicants may provide the processes and acceptance criteria by which the details of the design in this area are to be developed, designed, and evaluated. The design description should state the scope of the material in Tier 1. The application could, for example, encompass the radiological shielding and ventilation design of the reactor building, turbine building, control building, service building, and radwaste building. The COL applicant or licensee is responsible for the implementation of the process and the design. The DAC may be taken from the acceptance criteria in the applicable sections of Chapter 12 of the SRP. The analysis methods and source term assumptions specified in the DAC should be consistent with the approved methods and assumptions listed in the SRP. The SRP is the basis for the staff’s safety review of the standard design. Therefore, demonstrating that the final design meets these DAC with the methods and assumptions specified in Tier 1 ensures that the as-built design will meet the applicable acceptance criteria of the SRP and the associated regulations and staff technical positions. The DAC in Tier 1 should address the verification of the plant radiation shielding design and the plant airborne concentrations of radioactive materials (e.g., the ventilation system and airborne monitoring system designs). The DAC should require the COL applicant to calculate radiation levels and airborne radioactivity levels within the plant rooms