Document: NRC Regulatory Guide
Document ID: 377c2606-4b7c-4c7f-997d-37aed1680452
Document Type: regulatory_guide
Title: Performance, Testing, and Procedural Specifications for Thermoluminescence Dosimetry: Environmental Applications + HISTORY - HISTORY 10/2018 – DG-4019 , Proposed Revision 2 11/2014 – Periodic Review of Revision 1 – Revise (Rev. 2)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1808/ML18087A169.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.13
CFR Part: 
CFR Title: 

Content:
cation The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information unless the document requesting or requiring the collection displays a currently valid OMB control number. DG-4019, Page 5 B. DISCUSSION Reason for Revision This revision of the guide (Revision 2) provides updated NRC guidance on an acceptable dosimetry program by endorsing ANSI/HPS N13.37-2014. The 2014 ANSI/HPS standard provides up-to-date environmental dosimetry system design criteria and dosimeter laboratory test protocols and data-analysis methods suitable to assess potential facility-related radiation doses. The NRC modified the title of Revision 2 to RG 4.13 from the title used for Revision 1. The NRC is changing the title to more clearly indicate the content of the RG, which includes data-analysis methods suitable to assess potential facility-related radiation doses, and to broaden the scope beyond thermoluminescence dosimetry to include other types of dosimetry. Background RG 4.1, “Radiological Environmental Monitoring for Nuclear Power Plants,” provides an overall description of an environmental monitoring program for nuclear power plants. It includes guidance for evaluating direct radiation measurements to determine the dose contribution from plant operation to members of the public in the general environment. Revision 1 to RG 4.13, “Performance, Testing, and Procedural Specifications for Thermoluminescence Dosimetry: Environmental Applications,” issued in July 1977 (Ref. 13), endorsed the American National Standards Institute (ANSI) N545-1975, “Performance, Testing, and Procedural Specifications for Thermoluminescence Dosimetry (Environmental Applications)” standard (Ref. 14). ANSI N545-1975 provides a conceptual description of two methods for analyzing environmental data, but it does not provide specific data analysis techniques for either method. The two methods are based on two assumptions: (1) Background radiation levels are