Document: NUREG-0800
Document ID: 49aefb86-1adb-4b3c-826f-480e32947595
Document Type: srp
Title: Radiological Consequence Analyses Using Alternative Source Terms
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0037/ML003734190.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.0.1
CFR Part: 
CFR Title: 

Content:
licensee>, staff experience in performing similar reviews and, where deemed necessary, on staff confirmatory calculations. The staff reviewed the assumptions, inputs, and methods used by <licensee> to assess the radiological impacts of the proposed plant modifications in the context of the proposed AST. The staff finds that <licensee> used analysis methods and assumptions consistent with the conservative guidance of RG-1.183, with the exceptions discussed and 4 The description of the boundary should identify all structures, systems, and components, and accident analysis for which the design basis has been changed. 15.0.1-15 Rev. 0 -- July 2000 accepted earlier in this SER. The staff finds the methods and assumptions used by <licensee> to be in compliance with applicable requirements. The staff compared the doses estimated by <licensee> to the applicable acceptance criteria and to the results estimated by the staff in its confirmatory calculations. The staff finds with reasonable assurance that the licensee’s estimates of the total effective dose equivalent due to design basis accidents will comply with the requirements of 10 CFR 50.67 and the guidance of RG-1.183. [As necessary, discuss NUREG-0737 items, equipment EQ]. The staff finds reasonable assurance that the <facility>, as modified by this proposal, will continue to provide sufficient safety margins with adequate defense in depth to address unanticipated events and to compensate for uncertainties in accident progression and analysis assumptions and parameters. The staff concludes that the proposed AST implementation and the associated plant modifications are acceptable. 6. For a full implementation of an AST, text similar to the following is to be included in the above conclusion: This licensing action is considered a full implementation of the AST. With this approval, the previous accident source term in the <facility> design basis is superseded by the AST proposed by <licensee>. The previous offsite and