Scintillator light yield measurements with waveform digitizers

Laplace, T.A.; Goldblum, B.L.; Brown, J.A.; Manfredi, J. J.

doi:10.1016/j.nima.2020.163485

Title: Scintillator light yield measurements with waveform digitizers

Journal Article · 01 February 2020 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI: https://doi.org/10.1016/j.nima.2020.163485 · OSTI ID:1606252

Laplace, T.A. ^[1]; Goldblum, B.L. ^[2]; Brown, J.A. ^[1]; Manfredi, J. J. ^[1]

Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division

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.

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Research Organization:: University of California, Berkeley, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

Contributing Organization:: Nuclear Science and Security Consortium

Grant/Contract Number:: NA0003180; AC02-05CH11231

OSTI ID:: 1606252

Alternate ID(s):: OSTI ID: 1597561

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 959, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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References (16)

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