Neutron response function characterization of 4He scintillation detectors

Kelley, Ryan P.; Rolison, Lucas M.; Lewis, Jason M.; Murer, David; Massey, Thomas N.; Enqvist, Andreas; Jordan, Kelly A.

doi:10.1016/j.nima.2015.04.011

Title: Neutron response function characterization of ⁴He scintillation detectors

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Abstract

Time-of-flight measurements were conducted to characterize the neutron energy response of pressurized 4He fast neutron scintillation detectors for the first time, using the Van de Graaff generator at Ohio University. The time-of-flight spectra and pulse height distributions were measured. This data was used to determine the light output response function, which was found to be linear at energies below 3.5 MeV. The intrinsic efficiency of the detector as a function of incident energy was also calculated: the average efficiency up to 10 MeV was 3.1%, with a maximum efficiency of 6.6% at 1.05 MeV. Furthermore, these results will enable development of neutron spectrum unfolding algorithms for neutron spectroscopy applications with these detectors.

Authors:

Kelley, Ryan P. ^[1]; Rolison, Lucas M. ^[1]; Lewis, Jason M. ^[1]; Murer, David ^[2]; Massey, Thomas N. ^[3]; Enqvist, Andreas ^[1]; Jordan, Kelly A. ^[1]

Univ. of Florida, Gainesville, FL (United States)
Arktis Radiation Detectors Ltd., Zurich (Switzerland)
Ohio Univ., Athens, OH (United States)

Publication Date:: Wed Apr 15 00:00:00 EDT 2015

Research Org.:: Ohio Univ., Athens, OH (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Science (NA-113)

Contributing Org.:: University of Florida, Ohio University

OSTI Identifier:: 1339101

Grant/Contract Number:: NA0001837

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: 793; Journal Issue: C; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 61 RADIATION PROTECTION AND DOSIMETRY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; neutron detector; scintillators; ⁴He; time-of-flight

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                    Kelley, Ryan P., Rolison, Lucas M., Lewis, Jason M., Murer, David, Massey, Thomas N., Enqvist, Andreas, and Jordan, Kelly A. Neutron response function characterization of 4He scintillation detectors.  United States: N. p., 2015. 
Web.  doi:10.1016/j.nima.2015.04.011.

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                    Kelley, Ryan P., Rolison, Lucas M., Lewis, Jason M., Murer, David, Massey, Thomas N., Enqvist, Andreas, & Jordan, Kelly A. Neutron response function characterization of 4He scintillation detectors.  United States.  https://doi.org/10.1016/j.nima.2015.04.011

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                    Kelley, Ryan P., Rolison, Lucas M., Lewis, Jason M., Murer, David, Massey, Thomas N., Enqvist, Andreas, and Jordan, Kelly A. Wed .  
"Neutron response function characterization of 4He scintillation detectors".  United States.  https://doi.org/10.1016/j.nima.2015.04.011.  https://www.osti.gov/servlets/purl/1339101.

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@article{osti_1339101,

  title        = {Neutron response function characterization of 4He scintillation detectors},

  author       = {Kelley, Ryan P. and Rolison, Lucas M. and Lewis, Jason M. and Murer, David and Massey, Thomas N. and Enqvist, Andreas and Jordan, Kelly A.},

  abstractNote = {Time-of-flight measurements were conducted to characterize the neutron energy response of pressurized 4He fast neutron scintillation detectors for the first time, using the Van de Graaff generator at Ohio University. The time-of-flight spectra and pulse height distributions were measured. This data was used to determine the light output response function, which was found to be linear at energies below 3.5 MeV. The intrinsic efficiency of the detector as a function of incident energy was also calculated: the average efficiency up to 10 MeV was 3.1%, with a maximum efficiency of 6.6% at 1.05 MeV. Furthermore, these results will enable development of neutron spectrum unfolding algorithms for neutron spectroscopy applications with these detectors.},

  doi          = {10.1016/j.nima.2015.04.011},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = C,

  volume       = 793,

  place        = {United States},

  year         = {Wed Apr 15 00:00:00 EDT 2015},

  month        = {Wed Apr 15 00:00:00 EDT 2015}

}

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Title: Neutron response function characterization of 4He scintillation detectors

Abstract

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Title: Neutron response function characterization of ⁴He scintillation detectors