Measurement and analysis system for the identification of shielded neutron sources

Marek Flaska, Sara A. Pozzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Accurate identification of radioactive materials is essential in areas such as nuclear nonproliferation, international safeguards, nuclear material control and accountability, and national security. Recently, a new application of a technique that acquires neutron pulse-height spectra using a liquid scintillation detector, a digitizer, and an optimized pulse shape discrimination technique was proposed. The method can be used for accurate identification of neutron sources such as Cf-252, Am-Be, and Am-Li. AU these sources were investigated in combination with several shielding blocks made of polyethylene and lead. From the results it is apparent that source identification is possible by the data inspection of the measured pulse-height distributions. The general slope of the distributions can be used for the source identification, and all sources tested can be accurately identified. All measured pulse-height distributions were also compared to distributions simulated with the MCNP-PoliMi code and very good agreement was achieved.

Original languageEnglish (US)
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages199-203
Number of pages5
DOIs
StatePublished - Dec 1 2007
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: Oct 27 2007Nov 3 2007

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume1
ISSN (Print)1095-7863

Other

Other2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
CountryUnited States
CityHonolulu, HI
Period10/27/0711/3/07

All Science Journal Classification (ASJC) codes

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

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    Flaska, M., & Pozzi, S. A. (2007). Measurement and analysis system for the identification of shielded neutron sources. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (pp. 199-203). [4436315] (IEEE Nuclear Science Symposium Conference Record; Vol. 1). https://doi.org/10.1109/NSSMIC.2007.4436315