Methodology for Determining Radiation Portal Monitor Availability from Daily Files
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
The Second Line of Defense (SLD) Program works with partner countries to enhance their capabilities in deterring, detecting, and interdicting the illicit trafficking of nuclear and radiological materials through international borders by providing radiation detection equipment and related training. With agreement from SLD partner countries, the program collects daily file data from installed TSA Systems pedestrian, conveyor, vehicle, and rail radiation portal monitors (RPMs).1 Analysis of the data can provide information related to the state of health and configuration of the radiation monitoring equipment. By analyzing this data from the field over long periods of time, the program is able to determine valuable information such as the general reliability of the deployed equipment. In order to characterize the program’s overall effectiveness, data from daily files is used to determine the availability of RPMs that submit daily files to Oak Ridge National Laboratory (ORNL). Availability in this context is the proportion of time the RPM is in a functioning condition. The RPM is available when all the components of the system are functioning properly, thereby allowing the proper functioning of the RPM as a whole. This document explains the methodology and assumptions used to arrive at an availability metric for the RPMs from which ORNL receives data.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1060248
- Report Number(s):
- ORNL/TM--2012/239; NN5005040; MDGA516
- Country of Publication:
- United States
- Language:
- English
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