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- Title
Dynamic numerical recipes to improve detection schemes for the interdiction of radioactive shipment.
- Authors
Armenteros, J. C.; Suárez, M. J.; Pujol, L.
- Abstract
Radiation Portal Monitors (RPM) acquire sequential measurements of gamma activity that can be modeled as a sequence of Poisson distributed random numbers. These series can be analyzed with Statistical Process Control (SPC) methods to trigger alarms when the statistical distribution of the ambient dose during a transit changes. Some usual SPC methods have been compared and modified to narrow the time required to bound an alarm. Both the probabilities of detection and the Average Run Length (ARL) are used and fitted to curves to benchmark the SPC methods, which are ranked as: SR, EWMA, CUSUM, SPRT, FLR, and Shewhart.
- Subjects
GAMMA ray detectors; GAMMA rays; RADIATION monitoring devices; RANDOM numbers; POISSON distribution; STATISTICAL process control; PROBABILITY theory
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 318, Issue 2, p865
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-018-5958-2