Document: NUREG-0800
Document ID: 0c942a2c-afa6-4bbd-8f3f-4eede9dc146e
Document Type: srp
Title: - 12.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350048.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
ed radiation levels; and (3) provide a continuous record of radiation levels at key locations throughout the plant. In order to meet these objectives, the applicant plans to use (number) area monitors located in areas where personnel may be present, and where radiation levels could become significant. The area radiation monitoring system meets the criteria of Section II.F.1(3) of NUREG-0737 and Regulatory Guide 1.97'and is equipped with local and remote audio and visual alarms and a facility for central recording. (List examples of other area monitoring system features.) The design objectives of the applicants' airborne radioactivity monitoring system are: (1) to assist in maintaining occupational exposure to airborne contaminants as low as is reasonably achievable; (2) to check on the integrity of systems containing radioactivity; and (3) to warn of unexpected release of airborne radioactivity to prevent inadvertent overexposure of personnel. The applicant will install airborne radioactivity monitors in work areas where there is a potential for airborne radioactivity. These airborne radioactivity monitors have the capability to detect (1) maximum permissible concentrations(s) in air (MPCa) of the most restrictive particulate and iodine radionuclides in the area or cubicle of lowest ventilation flow rate within (10) hours(s) (usually denoted as 10 MPC-hrs). The applicant will provide portable continuous air monitors when needed to monitor air in areas not provided with fixed air- borne radioactivity monitors. All airborne and area radioactivity monitors will 12. 3-14 Rev. 2 - July 1981 be calibrated periodically. (List examples of other airborne radioactivity monitoring features.) The objectives and location criteria of (plant name) area and airborne radiation monitoring systems are in conformance with those portions of 10 CFR Parts 20.201, 50.34, and 70.24, as well as Regulatory Guides 1.97, 8.2, and 8.8, and ANSI Standard 13.1, related to airborne radioactivity