Guide to Performing Computational Analysis of Criticality Accident Alarm Systems
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
This document provides guidance on performing computational analyses of Criticality Accident Alarm Systems (CAAS). A brief overview of ANSI/ANS-8.3-1997 (R2012), the standard that the United States Department of Energy uses to guide the placement of CAAS detectors, is provided with a focus on the parts of the standard that are most applicable to calculating CAAS detector responses and evaluating CAAS detector coverage. This is followed by a brief discussion of how CAAS detector response calculations differ from eigenvalue calculations that criticality safety practitioners perform regularly. The remainder of the document provides computational examples of how to determine the minimum accident of concern according to ANSI/ANS-8.3-1997 (R2012), how to calculate the response of a CAAS detector due to a specific criticality accident, and how to evaluate the coverage of a CAAS detector for criticality accidents. These practical examples are solved applying SCALE 6.1 and MCNP5, but the methodologies can be applied to other radiation transport codes with similar capabilities, including deterministic codes.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1136788
- Report Number(s):
- ORNL/TM--2013/211; EY804910N
- Country of Publication:
- United States
- Language:
- English
Similar Records
Guidance Detailing Methods to Calculate Criticality Accident Alarm System Detector Response and Coverage
Examination of criticality accident alarm coverage on the operating floors of the X-333, X-330, and X-326 facilities at the Portsmouth Gaseous Diffusion Plant
An examination of criticality accident alarm coverage of the X-710, X-760 Buildings and the north half of the X-7745-R storage pad at the Portsmouth Gaseous Diffusion Plant
Conference
·
Sun Sep 29 00:00:00 EDT 2013
·
OSTI ID:1095654
Examination of criticality accident alarm coverage on the operating floors of the X-333, X-330, and X-326 facilities at the Portsmouth Gaseous Diffusion Plant
Technical Report
·
Sun Dec 31 23:00:00 EST 1995
·
OSTI ID:188621
An examination of criticality accident alarm coverage of the X-710, X-760 Buildings and the north half of the X-7745-R storage pad at the Portsmouth Gaseous Diffusion Plant
Technical Report
·
Sun Dec 31 19:00:00 EST 1995
·
OSTI ID:201802