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:
d 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 effluent streams to be monitored by radiation detection instrumentation or sampled for separate analyses, (2) purpose of each monitoring or sampling function, and (3) parameters to characterize, through monitoring instrumentation or sampling and analysis, radionuclide distributions and concentrations in sampled process and effluent streams (e.g., total gross beta-gamma or alpha activity, radionuclide-specific concentrations or inventories, isotopic analyses for halogens and noble gases, and radioactivity levels or inventories by groupings of radionuclides). 2. The system description for the PERMISS includes the following: A. Descriptions of radiation measurement instrumentation and related sampling equipment, including redundancy and independence (where applicable); instrumentation dynamic response range, calibration, and sensitivity; methods for determining alarm/trip setpoints for activating alarms and for terminating effluent releases or isolating processes; types and placement of detector check sources; basis for in-plant effluent dilution flow rates; and diversity of components used in monitoring normal operations, AOOs, and postulated accidents. B. Location of radiation instrumentation, monitors, and direct readouts (local and control room), including the proposed locations and interface with skid-mounted radiation monitoring equipment. 11.5-4 Draft Revision 6 – August 2014 C. Location and basis of selected sampling points and sampling stations using NRC and industry technical guidance in ensuring the collection of representative samples, while minimizing losses or deposition in sampling lines. D. Methods used to convert raw instrumentation readings into meaningful radiological results to identify radioactivity or radionuclide concentrations monitored or