Characterization of a Liquid Ammonia Moderator

E. B. Iverson; D. V. Baxter; F. X. Gallmeier; R. C. Gillis; T. Hügle; W. Lu; T. C. McClanahan; I. Remec; T. C. Rinckel

doi:10.1088/1742-6596/1021/1/012067

Characterization of a Liquid Ammonia Moderator

E. B. Iverson, D. V. Baxter, F. X. Gallmeier, R. C. Gillis, T. Hügle, W. Lu, T. C. McClanahan, I. Remec, T. C. Rinckel

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Liquid ammonia is an attractive intermediate temperature moderating material, offering a high hydrogen density, low tendency toward radiation-initiated polymerization, and broad accessible temperature range. The LENS collaboration has characterized decoupled poisoned liquid ammonia moderators in an attempt to validate scattering kernels we are generating. Additionally, we have measured a borated water moderator in order to test a model for predicting detailed moderator performance at one level of intrinsic homogeneous neutron capture based on measurements at other levels of such capture. We describe both sets of measurements, as well as use them to illustrate some of the reproducibility challenges associated with moderator characterization measurements on compact neutron sources.

Original language	English
Article number	012067
Journal	Journal of Physics: Conference Series
Volume	1021
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1021/1/012067
State	Published - Jun 4 2018
Externally published	Yes
Event	22nd Meeting of the International Collaboration on Advanced Neutron Sources, ICANS 2017 - Oxford, United Kingdom Duration: Mar 27 2017 → Mar 31 2017

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
Office of Basic Energy Sciences	DE-AC05-00OR22725
U.S. Department of Energy
Office of Science

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10.1088/1742-6596/1021/1/012067

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title = "Characterization of a Liquid Ammonia Moderator",

abstract = "Liquid ammonia is an attractive intermediate temperature moderating material, offering a high hydrogen density, low tendency toward radiation-initiated polymerization, and broad accessible temperature range. The LENS collaboration has characterized decoupled poisoned liquid ammonia moderators in an attempt to validate scattering kernels we are generating. Additionally, we have measured a borated water moderator in order to test a model for predicting detailed moderator performance at one level of intrinsic homogeneous neutron capture based on measurements at other levels of such capture. We describe both sets of measurements, as well as use them to illustrate some of the reproducibility challenges associated with moderator characterization measurements on compact neutron sources.",

author = "Iverson, {E. B.} and Baxter, {D. V.} and Gallmeier, {F. X.} and Gillis, {R. C.} and T. H{\"u}gle and W. Lu and McClanahan, {T. C.} and I. Remec and Rinckel, {T. C.}",

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T1 - Characterization of a Liquid Ammonia Moderator

AU - Iverson, E. B.

AU - Baxter, D. V.

AU - Gallmeier, F. X.

AU - Gillis, R. C.

AU - Hügle, T.

AU - Lu, W.

AU - McClanahan, T. C.

AU - Remec, I.

AU - Rinckel, T. C.

PY - 2018/6/4

Y1 - 2018/6/4

N2 - Liquid ammonia is an attractive intermediate temperature moderating material, offering a high hydrogen density, low tendency toward radiation-initiated polymerization, and broad accessible temperature range. The LENS collaboration has characterized decoupled poisoned liquid ammonia moderators in an attempt to validate scattering kernels we are generating. Additionally, we have measured a borated water moderator in order to test a model for predicting detailed moderator performance at one level of intrinsic homogeneous neutron capture based on measurements at other levels of such capture. We describe both sets of measurements, as well as use them to illustrate some of the reproducibility challenges associated with moderator characterization measurements on compact neutron sources.

AB - Liquid ammonia is an attractive intermediate temperature moderating material, offering a high hydrogen density, low tendency toward radiation-initiated polymerization, and broad accessible temperature range. The LENS collaboration has characterized decoupled poisoned liquid ammonia moderators in an attempt to validate scattering kernels we are generating. Additionally, we have measured a borated water moderator in order to test a model for predicting detailed moderator performance at one level of intrinsic homogeneous neutron capture based on measurements at other levels of such capture. We describe both sets of measurements, as well as use them to illustrate some of the reproducibility challenges associated with moderator characterization measurements on compact neutron sources.

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DO - 10.1088/1742-6596/1021/1/012067

M3 - Conference article

AN - SCOPUS:85048383180

SN - 1742-6588

VL - 1021

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012067

T2 - 22nd Meeting of the International Collaboration on Advanced Neutron Sources, ICANS 2017

Y2 - 27 March 2017 through 31 March 2017

ER -

Characterization of a Liquid Ammonia Moderator

Abstract

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