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Title: Scintillator light yield measurements with waveform digitizers

Abstract

The proton light yield of organic scintillators has been measured extensively in recent years using fast waveform digitizers and large discrepancies exist in the values reported by different authors. In this letter, we address principles of digital signal processing that must be considered when conducting scintillator light yield measurements. Digitized waveform pulse height values are only proportional to the amount of scintillation light if the temporal shape of the scintillation pulse is independent of the amount of energy deposited. Finally, this is not the case for scintillation pulses resulting from fast neutron interactions in organic scintillators. Authors measuring proton light yield should therefore report pulse integral values and ensure that the integration length is long enough to capture most of the scintillation light.

Authors:
 [1];  [2];  [1];  [1]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
  2. Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Publication Date:
Research Org.:
Univ. of California, Berkeley, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
Contributing Org.:
Nuclear Science and Security Consortium
OSTI Identifier:
1606252
Alternate Identifier(s):
OSTI ID: 1597561
Grant/Contract Number:  
NA0003180; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 959; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Organic scintillator; Proton light yield; Neutron detection; Digital signal processing

Citation Formats

Laplace, T.A., Goldblum, B.L., Brown, J.A., and Manfredi, J. J. Scintillator light yield measurements with waveform digitizers. United States: N. p., 2020. Web. https://doi.org/10.1016/j.nima.2020.163485.
Laplace, T.A., Goldblum, B.L., Brown, J.A., & Manfredi, J. J. Scintillator light yield measurements with waveform digitizers. United States. https://doi.org/10.1016/j.nima.2020.163485
Laplace, T.A., Goldblum, B.L., Brown, J.A., and Manfredi, J. J. Sat . "Scintillator light yield measurements with waveform digitizers". United States. https://doi.org/10.1016/j.nima.2020.163485. https://www.osti.gov/servlets/purl/1606252.
@article{osti_1606252,
title = {Scintillator light yield measurements with waveform digitizers},
author = {Laplace, T.A. and Goldblum, B.L. and Brown, J.A. and Manfredi, J. J.},
abstractNote = {The proton light yield of organic scintillators has been measured extensively in recent years using fast waveform digitizers and large discrepancies exist in the values reported by different authors. In this letter, we address principles of digital signal processing that must be considered when conducting scintillator light yield measurements. Digitized waveform pulse height values are only proportional to the amount of scintillation light if the temporal shape of the scintillation pulse is independent of the amount of energy deposited. Finally, this is not the case for scintillation pulses resulting from fast neutron interactions in organic scintillators. Authors measuring proton light yield should therefore report pulse integral values and ensure that the integration length is long enough to capture most of the scintillation light.},
doi = {10.1016/j.nima.2020.163485},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 959,
place = {United States},
year = {2020},
month = {2}
}

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