Document: NRC Regulatory Guide
Document ID: 4d46a966-d280-43da-9b03-8b0abe7b29ce
Document Type: regulatory_guide
Title: Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2120/ML21204A065.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.183
CFR Part: 
CFR Title: 

Content:
..................................... 16 3. Accident Source Term ...................................................................................................... 17 3.1 Fission Product Inventory ................................................................................................. 17 3.2 Release Fractions .............................................................................................................. 19 3.3 Timing of Release Phases ................................................................................................. 22 3.4 Radionuclide Composition ................................................................................................ 22 3.5 Chemical Form .................................................................................................................. 23 3.6 Fuel Damage in Non-Loss-of-Coolant Accident Design Basis Accidents ........................ 23 4. Dose Calculation Methodology ........................................................................................ 23 4.1 Offsite Dose Consequences .............................................................................................. 23 4.2 Control Room Dose Consequences ................................................................................... 24 4.3 Other Dose Consequences ................................................................................................ 26 4.4 Acceptance Criteria ........................................................................................................... 27 5. Analysis Assumptions and Methodology.......................................................................... 29 5.1 General Considerations ..................................................................................................... 29 5.2 Accident-Specific Assumptions ........................................................................................ 30 5.3 Atmospheric Dispersion Modeling and Meteorology