Characterization of a gold-and-indium dual-activation-foil-based bonner sphere system

Zhonglu Wang; Rebecca M. Howell; Stephen F. Kry; Eric A. Burgett; Nolan E. Hertel; Mohammad Salehpour

doi:10.13182/NT09-A9276

Characterization of a gold-and-indium dual-activation-foil-based bonner sphere system

Zhonglu Wang, Rebecca M. Howell, Stephen F. Kry, Eric A. Burgett, Nolan E. Hertel, Mohammad Salehpour

Radiation Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A gold-and-indium dual-activation-foil-based Bonner sphere system (BSS)for neutron spectral measurements was investigated. A customized polyethylene holder was designed to simultaneously accommodate one indium foil and one gold foil placed orthogonally to each other. The holder, which fits into the center of a Bonner sphere, resembles a standard ⁶LiI(Eu) detector. The response of the dual-activation-foil-basedsystem was calculated using the MCNPX code with different activation cross-section libraries (ACTL and ENDF/VI for gold foils and ACTL and 532DOS2for indium foils). To verify and correct the calculated response functions, measurements were performed using ²⁵²CfandAmBe neutron sources of known strengths. Working response functions were determined for neutrons with energies ranging from thermal to 20MeVby applying correction factors from measurements in well- characterized beams to the Monte Carlo-calculated response functions. Measured data were successfully unfolded with the corrected response functions and found to be in good agreement with the known spectra.

Original language	English (US)
Pages (from-to)	603-609
Number of pages	7
Journal	Nuclear Technology
Volume	168
Issue number	3
DOIs	https://doi.org/10.13182/NT09-A9276
State	Published - Dec 2009

Keywords

Bonner sphere
Neutron spectroscopy
Response function

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Condensed Matter Physics

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10.13182/NT09-A9276

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title = "Characterization of a gold-and-indium dual-activation-foil-based bonner sphere system",

abstract = "A gold-and-indium dual-activation-foil-based Bonner sphere system (BSS)for neutron spectral measurements was investigated. A customized polyethylene holder was designed to simultaneously accommodate one indium foil and one gold foil placed orthogonally to each other. The holder, which fits into the center of a Bonner sphere, resembles a standard 6LiI(Eu) detector. The response of the dual-activation-foil-basedsystem was calculated using the MCNPX code with different activation cross-section libraries (ACTL and ENDF/VI for gold foils and ACTL and 532DOS2for indium foils). To verify and correct the calculated response functions, measurements were performed using 252CfandAmBe neutron sources of known strengths. Working response functions were determined for neutrons with energies ranging from thermal to 20MeVby applying correction factors from measurements in well- characterized beams to the Monte Carlo-calculated response functions. Measured data were successfully unfolded with the corrected response functions and found to be in good agreement with the known spectra.",

keywords = "Bonner sphere, Neutron spectroscopy, Response function",

author = "Zhonglu Wang and Howell, {Rebecca M.} and Kry, {Stephen F.} and Burgett, {Eric A.} and Hertel, {Nolan E.} and Mohammad Salehpour",

year = "2009",

month = dec,

doi = "10.13182/NT09-A9276",

language = "English (US)",

volume = "168",

pages = "603--609",

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T1 - Characterization of a gold-and-indium dual-activation-foil-based bonner sphere system

AU - Wang, Zhonglu

AU - Howell, Rebecca M.

AU - Kry, Stephen F.

AU - Burgett, Eric A.

AU - Hertel, Nolan E.

AU - Salehpour, Mohammad

PY - 2009/12

Y1 - 2009/12

N2 - A gold-and-indium dual-activation-foil-based Bonner sphere system (BSS)for neutron spectral measurements was investigated. A customized polyethylene holder was designed to simultaneously accommodate one indium foil and one gold foil placed orthogonally to each other. The holder, which fits into the center of a Bonner sphere, resembles a standard 6LiI(Eu) detector. The response of the dual-activation-foil-basedsystem was calculated using the MCNPX code with different activation cross-section libraries (ACTL and ENDF/VI for gold foils and ACTL and 532DOS2for indium foils). To verify and correct the calculated response functions, measurements were performed using 252CfandAmBe neutron sources of known strengths. Working response functions were determined for neutrons with energies ranging from thermal to 20MeVby applying correction factors from measurements in well- characterized beams to the Monte Carlo-calculated response functions. Measured data were successfully unfolded with the corrected response functions and found to be in good agreement with the known spectra.

AB - A gold-and-indium dual-activation-foil-based Bonner sphere system (BSS)for neutron spectral measurements was investigated. A customized polyethylene holder was designed to simultaneously accommodate one indium foil and one gold foil placed orthogonally to each other. The holder, which fits into the center of a Bonner sphere, resembles a standard 6LiI(Eu) detector. The response of the dual-activation-foil-basedsystem was calculated using the MCNPX code with different activation cross-section libraries (ACTL and ENDF/VI for gold foils and ACTL and 532DOS2for indium foils). To verify and correct the calculated response functions, measurements were performed using 252CfandAmBe neutron sources of known strengths. Working response functions were determined for neutrons with energies ranging from thermal to 20MeVby applying correction factors from measurements in well- characterized beams to the Monte Carlo-calculated response functions. Measured data were successfully unfolded with the corrected response functions and found to be in good agreement with the known spectra.

KW - Bonner sphere

KW - Neutron spectroscopy

KW - Response function

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ER -

Characterization of a gold-and-indium dual-activation-foil-based bonner sphere system

Abstract

Keywords

ASJC Scopus subject areas

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