High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response

Weldon, R. A.; Mueller, J. M.; Lynch, C.; Schuster, P.; Hedges, S.; Awe, C.; Li, L.; Barbeau, P.; Mattingly, J.

doi:10.1016/j.nima.2018.10.075

Title: High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response

Abstract

The scintillation light output response of stilbene crystals has been calculated for protons recoiling along the a, b, and c' crystalline axes with energies between 1.3 and 10 MeV using neutrons produced with the tandem Van de Graaff accelerator at Triangle Universities Nuclear Laboratory. The proton recoil energy and direction were measured using the coincident detection of neutrons between a stilbene scintillator and an array of EJ-309 liquid scintillators spanning arranged neutron recoil angles. The maximum light output was discovered to coincide with proton recoils along the a-axis, in disagreement with other published measurements, which reported the b-axis as the direction of the maximum light output. Additional measurements were conducted using two different stilbene crystals to confirm these results: a second measurement using the coincident detection of neutrons; measurements of neutron full energy deposition events along the a and b axes; and measurements of the count rate for ²⁵²Cf neutrons traveling along the a and b axes directions. All measurements found that recoils along the a-axis produce the maximum light output.

Authors:

Weldon, R. A. ^[1]; Mueller, J. M. ^[1]; Lynch, C. ^[2]; Schuster, P. ^[3]; Hedges, S. ^[4]; Awe, C. ^[4]; Li, L. ^[4]; Barbeau, P. ^[4]; Mattingly, J. ^[1]

North Carolina State Univ., Raleigh, NC (United States)
Inrad Optics, Northvale, NJ (United States)
Univ. of Michigan, Ann Arbor, MI (United States)
Duke Univ., Durham, NC (United States)

Publication Date:: Tue May 21 00:00:00 EDT 2019

Research Org.:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22); USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

OSTI Identifier:: 1523196

Alternate Identifier(s):: OSTI ID: 1636854

Grant/Contract Number:: NA0002534

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: 927; 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; Stilbene; Scintillation anisotropy; Crystalline organic scintillator; Neutron detection; Detector characterization

Citation Formats


                    Weldon, R. A., Mueller, J. M., Lynch, C., Schuster, P., Hedges, S., Awe, C., Li, L., Barbeau, P., and Mattingly, J. High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response.  United States: N. p., 2019. 
Web.  doi:10.1016/j.nima.2018.10.075.

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                    Weldon, R. A., Mueller, J. M., Lynch, C., Schuster, P., Hedges, S., Awe, C., Li, L., Barbeau, P., & Mattingly, J. High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response.  United States.  https://doi.org/10.1016/j.nima.2018.10.075

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                    Weldon, R. A., Mueller, J. M., Lynch, C., Schuster, P., Hedges, S., Awe, C., Li, L., Barbeau, P., and Mattingly, J. Tue .  
"High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response".  United States.  https://doi.org/10.1016/j.nima.2018.10.075.  https://www.osti.gov/servlets/purl/1523196.

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@article{osti_1523196,

  title        = {High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response},

  author       = {Weldon, R. A. and Mueller, J. M. and Lynch, C. and Schuster, P. and Hedges, S. and Awe, C. and Li, L. and Barbeau, P. and Mattingly, J.},

  abstractNote = {The scintillation light output response of stilbene crystals has been calculated for protons recoiling along the a, b, and c' crystalline axes with energies between 1.3 and 10 MeV using neutrons produced with the tandem Van de Graaff accelerator at Triangle Universities Nuclear Laboratory. The proton recoil energy and direction were measured using the coincident detection of neutrons between a stilbene scintillator and an array of EJ-309 liquid scintillators spanning arranged neutron recoil angles. The maximum light output was discovered to coincide with proton recoils along the a-axis, in disagreement with other published measurements, which reported the b-axis as the direction of the maximum light output. Additional measurements were conducted using two different stilbene crystals to confirm these results: a second measurement using the coincident detection of neutrons; measurements of neutron full energy deposition events along the a and b axes; and measurements of the count rate for 252Cf neutrons traveling along the a and b axes directions. All measurements found that recoils along the a-axis produce the maximum light output.},

  doi          = {10.1016/j.nima.2018.10.075},

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

  number       = C,

  volume       = 927,

  place        = {United States},

  year         = {Tue May 21 00:00:00 EDT 2019},

  month        = {Tue May 21 00:00:00 EDT 2019}

}

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Determination of light output function and angle dependent correction for a stilbene crystal scintillation neutron spectrometer
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 476, Issue 1-2
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Directional scintillation detector for the detection of the wind of WIMPs
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Shimizu, Y.; Minowa, M.; Sekiya, H.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 496, Issue 2-3
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Characterization of the scintillation anisotropy in crystalline stilbene scintillator detectors
journal, July 2017

Schuster, P.; Brubaker, E.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 859
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Title: High-precision characterization of the neutron light output of stilbene along the directions of maximum and minimum response

Abstract

Citation Formats

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