Document: NUREG-0800
Document ID: 55e187c7-8e17-41ed-a88e-0205d1317fb6
Document Type: srp
Title: - 12.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1315/ML13151A475.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
, and for the general public. The following are several of the shielding design features incorporated into [plant name]. [List several examples of shielding design features used at plant.] Some of the criteria used by [utility] in locating penetrations in shield walls at [plant name] are [list several shield penetration location criteria used]. These shielding techniques are designed to maintain personnel radiation exposures ALARA, in accordance with the provisions of RGs 8.8 and 8.10, and are acceptable. The general shield design methodology and source term inventories used for [plant name] are similar to those from operating reactors. The basic radiation transport analysis used for the applicants’ shield design is based on [list appropriate shielding computer codes used]. The applicant also used shielding information from operating nuclear plants as input data for the shield design calculations. All concrete shielding in the plant will be constructed in general compliance with RG 1.69. The staff finds the shielding design and methodology presented in the [CP PSAR, OL FSAR, DC FSAR, or COL FSAR] acceptable based on the SRP criteria. The ventilation system at [plant name] will be designed to ensure that plant personnel are not inadvertently exposed to airborne contaminants in excess of the limits provided in 10 CFR Part 20. The applicant intends to maintain personnel exposures ALARA by (1) maintaining airflow from areas of potentially low airborne concentrations to areas of higher potential concentrations, (2) ensuring negative or positive pressures to prevent exfiltration or infiltration of potential contaminants, and (3) locating ventilation system intakes so as to minimize intake of potentially contaminated air from other building exhaust points. These design criteria are in accordance with the guidelines of RGs 1.52 and 8.8. [List examples of exposure reduction features in the ventilation system] The applicant’s area radiation monitoring system is designed