Methodology and performance comparison of statistical learning pulse shape classifiers as demonstrated with organic liquid scintillator [Performance comparison of statistical learning pulse shape classifiers]

Wurtz, Ron; Blair, Brenton; Chen, Cliff; Glenn, Andrew; Kaplan, Alan D.; Rosenfield, Paul; Ruz, Jaime; Simms, Lance M.

doi:10.1016/j.nima.2018.06.001

Title: Methodology and performance comparison of statistical learning pulse shape classifiers as demonstrated with organic liquid scintillator [Performance comparison of statistical learning pulse shape classifiers]

Journal Article · Sat Jun 02 00:00:00 EDT 2018 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2018.06.001· OSTI ID:1479077

Wurtz, Ron ^[1]; Blair, Brenton ^[1]; Chen, Cliff ^[1]; Glenn, Andrew ^[1]; Kaplan, Alan D. ^[1]; Rosenfield, Paul ^[1]; Ruz, Jaime ^[1]; Simms, Lance M. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

In this study, we present novel methods for automated pulse shape discrimination. The classifiers are trained using simple radionuclide sources and do not require ground truth labeling. We test their performance using labels derived from time of flight experiments and present the results in terms of energy-dependent Receiver Operating Characteristic (ROC) curves. In addition, we also train and test standard pulse shape discrimination methods on the same data for comparison. We find multiple methods that can yield similar false neutron and true neutron rates at 24 keVee as tail-to-total or Gatti’s optimal linear filter yield at 54 keVee.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1479077

Alternate ID(s):: OSTI ID: 1548113

Report Number(s):: LLNL-JRNL-744406; 899021

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 901, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 14 works

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