Document: NUREG-0800
Document ID: e1fb2732-c7c9-4bbf-99dc-ee2469f9ed6f
Document Type: srp
Title: - 12.4  RADIATION PROTECTION DESIGN FEATURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070617.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
ntakes as possible. DRAFT Rev. 3 - April 1996 12.3-12 3. Ventilation monitors are upstream of HEPA filters. 4. The detectors are calibrated routinely and after any maintenance work is performed on the detector. 5. Each location 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. Emergency power is initiated after loss of offsite power. c. The in-plant accident radiation monitoring systems will be acceptable if they meet the following criteria: 1. Personnel have the capability to assess the radiation hazard in areas which may be accessed during the course of an accident, in accordance with the criteria of Item II.F.1 of NUREG-0718 and 0737,10 CFR Part 50, §50.34(f)(2)(xvii) and Regulatory Guide 1.97. 69 2. Portable instruments to be used in the event of an accident should be placed so as to be readily available to personnel responding to an emergency. 3. Emergency power should be provided for installed accident monitoring systems. 4. The accident monitoring systems should have usable ranges which include the maximum calculated accident levels; and should be designed to operate properly in the environment caused by the accident. 5. Applicants for CPs, standard design certifications, COL, and OLs should 70 provide two high-range radiation monitor systems in containment which are documented to meet the requirements of Table II.F.1 of NUREG-0718 and 073710 CFR Part 50, §50.34(f)(2)(xvii).71 d. Regulatory Guide 1.21, Appendix A, provides useful, guidance about effluent monitoring, that is applicable to the acceptability of airborne radioactivity monitoring in-plant. Regulatory Guide 8.2 includes guidance on surveys to evaluate radiation hazards. American National Standard ANSI N13.1-1969199372 provides detailed guidance on sampling airborne radioactive materials in nuclear facilities and may be used for acceptance criteria on the