Compensation of scintillation sensor gain variation during temperature transient conditions using signal processing techniques

A. Manor, A. Osovizky, E. Dolev, E. Marcus, D. Ginzburg, V. Pushkarsky, Y. Kadmon, Y. Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

The homeland security nuclear/radiological threat, accentuates the need for a Spectroscopy Personal Radiation Detector (SPRD). The CsI(Tl) capacity to discriminate the energy-lines of a gamma-radiation source along side with robust nature, makes these detectors suitable for isotope identification under harsh environmental conditions. However the CsI(Tl) detectors are also known for the temperature dependence of their response presenting itself in varying pulse time constant and crystal light yield. When observing a detection system as a whole this dependence appears as spectrum gain shift. For a radioisotope identification device it is paramount to correctly evaluate and compensate for any variation in spectrum parameters that may result in a faulty identification result. This work presents a theoretical analysis along side its practical application aiming at handling temperature transients. Step by step method for constructing a comprehensive scintillation detector temperature gain compensation schema will be presented and an application example will be demonstrated. Experimental lab work combined with digital signal processing techniques, including system identification and digital filtering methods are being used throughout this work and implemented for the solution of the real life problem of scintillation detector temperature gain compensation.

Original languageEnglish
Title of host publication2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Pages2399-2403
Number of pages5
DOIs
StatePublished - 1 Dec 2009
Externally publishedYes
Event2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 - Orlando, FL, United States
Duration: 25 Oct 200931 Oct 2009

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Conference

Conference2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Country/TerritoryUnited States
CityOrlando, FL
Period25/10/0931/10/09

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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