Document: NUREG-0800
Document ID: c8e72d8e-80ed-420f-9ddd-f5f19cf5989c
Document Type: srp
Title: RADIATION SOURCES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350047.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.2
CFR Part: 
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Content:
Part 50, §50.34, to arrive at conclusions of the following type, which are to be included in the staff's Safety Evaluation Report. The report will include a summary of the applicant's submittal, the staff's basis for review and acceptance criteria, and the findings of the review. The following is a brief representation of the evaluation findings. The staff concludes that the information provided by the applicant with respect to radiation sources is acceptable and meets the require- ments of 10 CFR Part 20, and 10 CFR Part 50, General Design Criterion 61. This conclusion is based or the following: The applicant has described a facility that can meet the require- ments of 10 CFR Part 20, §20.101, §20.103, §20.104, §20.106, and §20.207 as they relate to evaluation of source terms and the related provisions of 10 CFR Part 50, GDC 61, and supplemented by the guid- ance of Regulatory Guide 1.112, NUREG-0718, NUREG-0737, and ANSI Standard N237-1976. The applicant has provided a description of contained and airborne radioac- tivity sources used as inputs for the dose assessment and for shielding and ventilation designs. Also included are the applicant's assumptions in arriv- ing at quantitative values for these contained and airborne source terms, based on ANSI N237, Regulatory Guide 1.112, General Design Criterion 61, and 10 CFR Part 20, §20.101, §20.103 and §20.104. For post-accident shielding for vital area access, the source terms in NUREG-0737 were used. During power operation, the greatest potential for personnel dose during opera- tion is inside the containment due to nitrogen-16, noble gases, and neutrons. Outside the containment, and after shutdown inside the containment, the primary sources of personnel exposure are fission products from fuel clad defects, and activation products, including activated corrosion products. The coolant and corrosion activation product source terms are based on operating experience from reactors of similar design; allowances