Title :
Improving the detecting performances of radiation portal monitors using matched filter algorithm and generalized likelihood ratio test
Author :
Ghelman, M. ; Vax, E. ; Osovizky, A. ; Marcus, E. ; Ginzburg, D. ; Gonen, E. ; Seif, R. ; Pushkarsky, V. ; Wengrowicz, U. ; Kadmon, Y. ; Cohen, Y.
Author_Institution :
Nucl. Res. Center - Negev, Beer-Sheva, Israel
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
In this paper a method for improving the signal to noise ratio (SNR) is described. This method is based on matched filter algorithm. The prospective application for the described method would be in Radiation Portal Monitors (RPM), where the signal is observed to have a fixed pattern. The comparison of the proposed method to the traditional integration is presented. The improvement in the SNR is shown to be a factor of 10.
Keywords :
matched filters; maximum likelihood detection; maximum likelihood estimation; nuclear materials safeguards; nuclear materials transportation; radioactivity measurement; radioactivity measuring apparatus; detection performance; generalized likelihood ratio test; matched filter algorithm; radiation portal monitors; radioactive materials; signal to noise ratio; Matched filters; Performance evaluation; Portals; Radiation detectors; Radiation monitoring; Radioactive materials; Signal detection; Signal to noise ratio; Testing; Vehicles;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401563
