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

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

918

Lastpage

919

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5401563

Filename

5401563