Fast neutron spectroscopy with a volumetrically-sensitive, moderating-type neutron spectrometer in a high-radiation environment

Non-fission nuclear reactions were investigated by NASA as part of efforts to develop long-lasting electric power systems for space applications where solar energy is weak or unavailable. Key to investigation of nuclear reactions is spectroscopy of the neutron energies produced in such reactions. In...

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Bibliographic Details
Published in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1039; p. 166982
Main Authors:	Ugorowski, P.B., Currie, J.C., Baramsai, B., Steinetz, B.M., Forsley, L.P., Penney, N., Becks, M.D., Martin, R.E., Benyo, T.L., Chait, A., Hendricks, R.C., Fralick, G.C., Pines, M., Pines, V., Sandifer, C.E.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 11-09-2022
Subjects:	High-radiation environment MCNP simulation Moderating spectrometer NASA research Neutron spectroscopy Nuclear reactions NASA research High-radiation environment Neutron spectroscopy MCNP simulation Nuclear reactions Moderating spectrometer
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Summary:	Non-fission nuclear reactions were investigated by NASA as part of efforts to develop long-lasting electric power systems for space applications where solar energy is weak or unavailable. Key to investigation of nuclear reactions is spectroscopy of the neutron energies produced in such reactions. In addition to employing a standard scintillating-type neutron spectrometry system, the NASA team investigated the application of a moderating-type neutron spectrometer in a high-radiation environment as a parallel approach. The unfolded log-scale and linear-scale spectra of well-known calibration neutron sources are presented along with the ISO standard spectra for comparison. This new technology shows promise as a compact instrument capable of neutron spectroscopy in laboratory settings, and in particular, space applications where small size, low data rate and no onboard computation are advantages.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2022.166982