Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux
Abstract
Silicon pillar structures filled with a neutron converter material (10B) are designed to have high thermal neutron detection efficiency with specific dimensions of 50 μm pillar height, 2 μm pillar diameter and 2 μm spacing between adjacent pillars. In this paper, we have demonstrated such a detector has a high neutron-to-gamma discrimination of 106 with a high thermal neutron detection efficiency of 39% when exposed to a high gamma-ray field of 109 photons/cm2s.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- King Saud Univ., Riyadh (Saudi Arabia)
- Univ. of Nebraska, Lincoln, NE (United States). Dept. of Chemistry
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE; US Department of Homeland Security (DHS), Domestic Nuclear Detection Office
- OSTI Identifier:
- 1237544
- Alternate Identifier(s):
- OSTI ID: 1247195
- Report Number(s):
- LLNL-JRNL-641356
Journal ID: ISSN 0168-9002
- Grant/Contract Number:
- AC52-07NA27344; IAA HSHQDC-08-X-00874; LLNL-JRNL-641356
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 799; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; Thermal neutron detector; Gamma-ray discrimination; Silicon pillar; Boron
Citation Formats
Shao, Qinghui, Conway, Adam M., Voss, Lars F., Radev, Radoslav P., Nikolić, Rebecca J., Dar, Mushtaq A., and Cheung, Chin L. Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux. United States: N. p., 2015.
Web. doi:10.1016/j.nima.2015.07.045.
Shao, Qinghui, Conway, Adam M., Voss, Lars F., Radev, Radoslav P., Nikolić, Rebecca J., Dar, Mushtaq A., & Cheung, Chin L. Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux. United States. https://doi.org/10.1016/j.nima.2015.07.045
Shao, Qinghui, Conway, Adam M., Voss, Lars F., Radev, Radoslav P., Nikolić, Rebecca J., Dar, Mushtaq A., and Cheung, Chin L. 2015.
"Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux". United States. https://doi.org/10.1016/j.nima.2015.07.045. https://www.osti.gov/servlets/purl/1237544.
@article{osti_1237544,
title = {Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux},
author = {Shao, Qinghui and Conway, Adam M. and Voss, Lars F. and Radev, Radoslav P. and Nikolić, Rebecca J. and Dar, Mushtaq A. and Cheung, Chin L.},
abstractNote = {Silicon pillar structures filled with a neutron converter material (10B) are designed to have high thermal neutron detection efficiency with specific dimensions of 50 μm pillar height, 2 μm pillar diameter and 2 μm spacing between adjacent pillars. In this paper, we have demonstrated such a detector has a high neutron-to-gamma discrimination of 106 with a high thermal neutron detection efficiency of 39% when exposed to a high gamma-ray field of 109 photons/cm2s.},
doi = {10.1016/j.nima.2015.07.045},
url = {https://www.osti.gov/biblio/1237544},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
issn = {0168-9002},
number = C,
volume = 799,
place = {United States},
year = {Tue Aug 04 00:00:00 EDT 2015},
month = {Tue Aug 04 00:00:00 EDT 2015}
}
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Works referenced in this record:
Perforated Diode Fabrication for Neutron Detection
conference, October 2006
- McNeil, W. J.; Bellinger, S. L.; Unruh, T. C.
- 2006 IEEE Nuclear Science Symposium Conference Record
Microstructured semiconductor neutron detectors
journal, September 2009
- McGregor, D. S.; McNeil, W. J.; Bellinger, S. L.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 608, Issue 1
Numerical Simulations of Pillar Structured Solid State Thermal Neutron Detector: Efficiency and Gamma Discrimination
journal, October 2009
- Conway, Adam M.; Wang, Tzu F.; Deo, Nimanlendu
- IEEE Transactions on Nuclear Science, Vol. 56, Issue 5
6:1 aspect ratio silicon pillar based thermal neutron detector filled with B10
journal, September 2008
- Nikolić, R. J.; Conway, A. M.; Reinhardt, C. E.
- Applied Physics Letters, Vol. 93, Issue 13, Article No. 133502
Gamma discrimination in pillar structured thermal neutron detectors
conference, May 2012
- Shao, Q.; Radev, R. P.; Conway, A. M.
- SPIE Defense, Security, and Sensing, Vol. 8358, Article No. 83581N
High aspect ratio composite structures with 48.5% thermal neutron detection efficiency
journal, February 2013
- Shao, Q.; Voss, L. F.; Conway, A. M.
- Applied Physics Letters, Vol. 102, Issue 6
Scalable large-area solid-state neutron detector with continuous p–n junction and extremely low leakage current
journal, November 2014
- Huang, Kuan-Chih; Dahal, Rajendra; Lu, James J.-Q.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763, p. 260-265
High detection efficiency micro-structured solid-state neutron detector with extremely low leakage current fabricated with continuous p-n junction
journal, April 2013
- Huang, Kuan-Chih; Dahal, Rajendra; Lu, James J.-Q.
- Applied Physics Letters, Vol. 102, Issue 15, Article No. 152107
Self-powered micro-structured solid state neutron detector with very low leakage current and high efficiency
journal, June 2012
- Dahal, R.; Huang, K. C.; Clinton, J.
- Applied Physics Letters, Vol. 100, Issue 24, 243507
Improved High Efficiency Stacked Microstructured Neutron Detectors Backfilled With Nanoparticle $^{6}$LiF
journal, February 2012
- Bellinger, S. L.; Fronk, R. G.; McNeil, W. J.
- IEEE Transactions on Nuclear Science, Vol. 59, Issue 1
Optimizing diode thickness for thin-film solid state thermal neutron detectors
journal, October 2012
- Murphy, John W.; Kunnen, George R.; Mejia, Israel
- Applied Physics Letters, Vol. 101, Issue 14
Conformal filling of silicon micropillar platform with [sup 10]boron
journal, January 2008
- Deo, N.; Brewer, J. R.; Reinhardt, C. E.
- Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 26, Issue 4