An accurate and portable solid state neutron rem meter

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dc.contributor.author Oakes, T. M.
dc.contributor.author Bellinger, Steven L.
dc.contributor.author Miller, W. H.
dc.contributor.author Myers, E. R.
dc.contributor.author Fronk, R. G.
dc.contributor.author Cooper, B. W.
dc.contributor.author Sobering, Tim
dc.contributor.author Scott, P. R.
dc.contributor.author Ugorowski, Phillip B.
dc.contributor.author McGregor, Douglas S.
dc.contributor.author Shultis, J. Kenneth
dc.contributor.author Caruso, A. N.
dc.date.accessioned 2013-12-20T22:06:35Z
dc.date.available 2013-12-20T22:06:35Z
dc.date.issued 2013-08-11
dc.identifier.uri http://hdl.handle.net/2097/17005
dc.description.abstract Accurately resolving the ambient neutron dose equivalent spanning the thermal to 15 MeV energy range with a single configuration and lightweight instrument is desirable. This paper presents the design of a portable, high intrinsic efficiency, and accurate neutron rem meter whose energy-dependent response is electronically adjusted to a chosen neutron dose equivalent standard. The instrument may be classified as a moderating type neutron spectrometer, based on an adaptation to the classical Bonner sphere and position sensitive long counter, which, simultaneously counts thermalized neutrons by high thermal efficiency solid state neutron detectors. The use of multiple detectors and moderator arranged along an axis of symmetry (e.g., long axis of a cylinder) with known neutron-slowing properties allows for the construction of a linear combination of responses that approximate the ambient neutron dose equivalent. Variations on the detector configuration are investigated via Monte Carlo N-Particle simulations to minimize the total instrument mass while maintaining acceptable response accuracy—a dose error less than 15% for bare [superscript 252]Cf, bare AmBe, an epi-thermal and mixed monoenergetic sources is found at less than 4.5 kg moderator mass in all studied cases. A comparison of the energy dependent dose equivalent response and resultant energy dependent dose equivalent error of the present dosimeter to commercially-available portable rem meters and the prior art are presented. Finally, the present design is assessed by comparison of the simulated output resulting from applications of several known neutron sources and dose rates. en_US
dc.language.iso en_US en_US
dc.relation.uri http://doi.org/10.1016/j.nima.2013.03.060 en_US
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri https://rightsstatements.org/page/InC/1.0/?language=en
dc.subject Neutron dosimeter en_US
dc.subject Solid state neutron detector en_US
dc.subject Spectrometer en_US
dc.title An accurate and portable solid state neutron rem meter en_US
dc.type Article (author version) en_US
dc.date.published 2013 en_US
dc.citation.doi 10.1016/j.nima.2013.03.060 en_US
dc.citation.epage 12 en_US
dc.citation.jtitle Nuclear Instruments and Methods in Physics Research A en_US
dc.citation.spage 6 en_US
dc.citation.volume 719 en_US
dc.contributor.authoreid slb3888 en_US
dc.contributor.authoreid edl en_US
dc.contributor.authoreid pugo en_US
dc.contributor.authoreid mcgregor en_US
dc.contributor.authoreid jks en_US


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This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). Except where otherwise noted, the use of this item is bound by the following: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

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