Document: NUREG-0800
Document ID: 3c241845-034f-4f89-b12a-f51967895c13
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1307/ML13071A494.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
ication, display, quality assurance (QA), and selection of monitoring variables of radiation monitoring equipment required for accident monitoring and sampling. Radiological monitoring instrumentation systems used to initiate control room habitability functions and containment isolation are classified as safety-related. While these aspects are not discussed in this SRP section, the review conducted here compares the monitoring instrumentation and performance criteria of RG 1.97 and confirms that such instrumentation can provide complementary functions for systems that are used to comply with the requirements of 10 CFR Part 20 and 10 CFR Part 50. For radiation monitoring systems that supports nonsafety Three Mile Island (TMI) accident-related functions, the review of the design features and operating characteristics is performed using the guidance of RG 1.97 and industry standards, which address the performance, display, and monitoring functions required during accident conditions. For the nonsafety-related portions of the PERMISS, the review addresses the types and placement of radiation monitoring equipment in plant systems and facilities, operational ranges and qualification of radiation detectors in supporting the functions of monitoring systems, and functional interdependence and logic in alarming and terminating or diverting process or effluent streams. The applicant's technical submittal must provide sufficient information to confirm that the operation of the PERMISS and any failure of essential systems will not compromise public health and safety under 10 CFR Part 20 in complying with dose limits for members of the public and effluent concentration limits in unrestricted areas. The specific areas of review include the following topics: 1. The design objectives and criteria for the PERMISS, including the interface with skid- mounted radiation monitoring and sampling equipment connected to permanently installed systems. The review identifies the (1) process and