Requirements and quantitative comparison of fast waveform digitizers for data-acquisition systems designed for nuclear nonproliferation applications

M. Flaska, Guillaume Chaud, S. A. Pozzi

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

7 Scopus citations

Abstract

Accurate pulse shape discrimination (PSD) is essential for organic scintillators such as EJ-301s (or EJ-309s with higher flash point) because they are sensitive to both neutrons and gamma rays. Because of the background gamma-ray presence the accurate neutron detection requires accurate discrimination of neutrons from gamma rays. This is especially important for applications where fast and robust systems are paramount, such as nuclear nonproliferation and safeguards. For nuclear nonproliferation and safeguards applications, accurate discrimination of neutrons from gamma rays significantly influences the outcome of material identification/characterization. Specifically, particle misclassification can lead to longer measurement times or even to false identification/misclassification of measured material. In this paper, various fast waveform digitizers are compared from the PSD-performance point of view. Specifically, a 12-bit, 250-MHz digitizer is compared to a 12-bit, 500-MHz digitizer and a 10-bit 1-GHz/2-GHz digitizer. The results presented in this paper indicate that the 12-bit-500-MHz resolution combination leads to the best PSD results. The results also show that a 10-bit digitizer can perform better than a 12-bit digitizer, if the 10-bit digitizer has a significantly better time resolution.

Original languageEnglish (US)
Title of host publication2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2169-2173
Number of pages5
ISBN (Print)9781467301183
DOIs
StatePublished - Jan 1 2011
Event2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
Duration: Oct 23 2011Oct 29 2011

Publication series

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

Other

Other2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
CountrySpain
CityValencia
Period10/23/1110/29/11

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Requirements and quantitative comparison of fast waveform digitizers for data-acquisition systems designed for nuclear nonproliferation applications'. Together they form a unique fingerprint.

  • Cite this

    Flaska, M., Chaud, G., & Pozzi, S. A. (2011). Requirements and quantitative comparison of fast waveform digitizers for data-acquisition systems designed for nuclear nonproliferation applications. In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 (pp. 2169-2173). [6154439] (IEEE Nuclear Science Symposium Conference Record). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2011.6154439