Document: NRC Regulatory Guide
Document ID: 0cfc3978-32da-4370-9f31-8a3547d82846
Document Type: regulatory_guide
Title: Assumptions Used for Evaluating the Potential Radiological Consequences of a Fuel Handling Accident in the Fuel Handling and Storage Facility for Boiling and Pressurized Water Reactors (Rev. 0)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0833/ML083300022.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.25
CFR Part: 
CFR Title: 

Content:
Thus, the total beta or gamma dose to an individual located at the center of the cloud path may be approximated as: ψ E 25 .0 D or ψ E 23 .0 D γ γ β β = = ∞ Where ψ is the concentration time integral for the cloud (curie sec/m3). The beta and gamma energies emitted per disintegration, as given in Table of Isotopes,12 are averaged and used according to the methods described in ICRP Publication 2. 12 C. M. Lederer, J. M. Hollander, and I. Perlman, Table of Isotopes, Sixth Edition (New York: John Wiley and Sons, Inc. 1967). RG-1.25, Page 9 Figure 1. Ground Level Release Atmospheric Diffusion Factors RG-1.25, Page 10 Figure 2. Building Wake Correction Factor RG-1.25, Page 11 Figure 3. Elevated Release Atmospheric Diffusion Factors RG-1.25, Page 12 Figure 4. Elevated Release Atmospheric Dispersion Factors for Fumigation Conditions —Atmospheric Conditions— Pasquill Type F Windspeed 1 Meter/Sec Uniform Wind Direction