Neutron and gamma-ray energy reconstruction for characterization of special nuclear material
Abstract
Characterization of special nuclear material may be performed using energy spectroscopy of either the neutron or gamma-ray emissions from the sample. Gamma-ray spectroscopy can be performed relatively easily using high-resolution semiconductors such as high-purity germanium. Neutron spectroscopy, by contrast, is a complex inverse problem. Here, results are presented for 252Cf and PuBe energy spectra unfolded using a single EJ309 organic scintillator; excellent agreement is observed with the reference spectra. Neutron energy spectroscopy is also possible using a two-plane detector array, whereby time-offlight kinematics can be used. With this system, energy spectra can also be obtained as a function of position. Finally, spatial-dependent energy spectra are presented for neutron and gamma-ray sources that are in excellent agreement with expectations.
- Authors:
-
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences
- Publication Date:
- 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)
- OSTI Identifier:
- 1454794
- Grant/Contract Number:
- NA0002534
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Engineering and Technology
- Additional Journal Information:
- Journal Volume: 49; Journal Issue: 6; Journal ID: ISSN 1738-5733
- Publisher:
- Korean Nuclear Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Neutron spectroscopy; Spectrum unfolding; Neutron imaging
Citation Formats
Clarke, Shaun D., Hamel, Michael C., Di fulvio, Angela, and Pozzi, Sara A.. Neutron and gamma-ray energy reconstruction for characterization of special nuclear material. United States: N. p., 2017.
Web. doi:10.1016/j.net.2017.06.005.
Clarke, Shaun D., Hamel, Michael C., Di fulvio, Angela, & Pozzi, Sara A.. Neutron and gamma-ray energy reconstruction for characterization of special nuclear material. United States. https://doi.org/10.1016/j.net.2017.06.005
Clarke, Shaun D., Hamel, Michael C., Di fulvio, Angela, and Pozzi, Sara A.. Fri .
"Neutron and gamma-ray energy reconstruction for characterization of special nuclear material". United States. https://doi.org/10.1016/j.net.2017.06.005. https://www.osti.gov/servlets/purl/1454794.
@article{osti_1454794,
title = {Neutron and gamma-ray energy reconstruction for characterization of special nuclear material},
author = {Clarke, Shaun D. and Hamel, Michael C. and Di fulvio, Angela and Pozzi, Sara A.},
abstractNote = {Characterization of special nuclear material may be performed using energy spectroscopy of either the neutron or gamma-ray emissions from the sample. Gamma-ray spectroscopy can be performed relatively easily using high-resolution semiconductors such as high-purity germanium. Neutron spectroscopy, by contrast, is a complex inverse problem. Here, results are presented for 252Cf and PuBe energy spectra unfolded using a single EJ309 organic scintillator; excellent agreement is observed with the reference spectra. Neutron energy spectroscopy is also possible using a two-plane detector array, whereby time-offlight kinematics can be used. With this system, energy spectra can also be obtained as a function of position. Finally, spatial-dependent energy spectra are presented for neutron and gamma-ray sources that are in excellent agreement with expectations.},
doi = {10.1016/j.net.2017.06.005},
journal = {Nuclear Engineering and Technology},
number = 6,
volume = 49,
place = {United States},
year = {2017},
month = {6}
}
Web of Science
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