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:
particulates will also be based on evidence that the applicant has applied the guidance of Regulatory Guide 8.8 or that acceptable alternatives have been proposed. Regulatory Guide 1.52, particularly Sections C.4 and 5, provides guidance that can be used in this review, although the guide is written with regard to mitigating accidents involving airborne radioactivity. Good practice in that regard is applicable to normal operation as well, since release of radioactivity in normal operational occurrences is usually different only in quantity from some of the accident cases. 4. AREA RADIATION AND AIRBORNE RADIOACTIVITY MONITORING SYSTEMS a. The area radiation monitoring systems will be acceptable if they meet the provisions of 10 CFR Part 20.103, Regulatory Guide 8.15, Regulatory Guide 1.97 and NUREG-0737, Task Action Plan Item II.F.1, and the following criteria: 1. Principal protection against intake of radioactive materials is provided by engineering controls. 2. The detectors are located in areas which may be normally occupied without restricted access and which may have a potential for radiation fields in excess of the radiation zone designations discussed in Section 12.3.II.1 of Reference 7, in accordance with ANSI/ANS-HPSSC-6.8.1. 12.3-9 Rev. 2 - July 1981 3. The detectors provide on-scale readings of dose rate that include the design maximum dose rate of the radiation zone in which they are located as well as the maximum dose rate for anticipated operational occurrences and accidents. 4. The detectors are calibrated during fuel outages, and after any maintenance work is performed on the detector. 5. Each monitor has a local audible alarm and variable alarm set points. Monitors located in high noise areas should also have visual alarms. 6. Readout and annunciation are provided in the control room. 7. The in-containment high-range radiation monitors meet the criteria of Section II.F.1 of NUREG-0118 and 0737. 8. Emergency power is initiated after loss of offsite