A strong dynamic neutron source based on the 209Bi(γ, n) reaction

R. Moreh; R. Fedorowicz; W. V. Prestwich; T. J. Kennett; M. A. Islam

doi:10.1016/0168-9002(91)90255-O

A strong dynamic neutron source based on the ²⁰⁹Bi(γ, n) reaction

R. Moreh
, R. Fedorowicz
, W. V. Prestwich
, T. J. Kennett
, M. A. Islam

Department of Physics

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

3 Scopus citations

Abstract

An intense dynamic n-source, I = 10⁵ n/s having two n-groups E_n = 177 keV and 114 keV is reported. It is based on the Bi(γ, n) reaction where a chance overlap occurs between a γ-line of the Cu(n, γ) reaction and a nuclear level at 7637 keV in ²⁰⁹Bi. The thermal neutrons which induces the Cu(n, γ) reaction are obtained from a reactor. The spin, parity and total and radiative widths of the 7637 keV level in Bi were determined. The resonance cross sections for n-production are: σ_γn = 275 ± 40 mb and 93 ± 14 mb for the 177 keV and 114 keV groups respectively. The resulting dynamic n-source is the most intense which can be produced by this method.

Original language	English
Pages (from-to)	503-507
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	309
Issue number	3
DOIs	https://doi.org/10.1016/0168-9002(91)90255-O
State	Published - 15 Nov 1991

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Cite this

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title = "A strong dynamic neutron source based on the 209Bi(γ, n) reaction",

abstract = "An intense dynamic n-source, I = 105 n/s having two n-groups En = 177 keV and 114 keV is reported. It is based on the Bi(γ, n) reaction where a chance overlap occurs between a γ-line of the Cu(n, γ) reaction and a nuclear level at 7637 keV in 209Bi. The thermal neutrons which induces the Cu(n, γ) reaction are obtained from a reactor. The spin, parity and total and radiative widths of the 7637 keV level in Bi were determined. The resonance cross sections for n-production are: σγn = 275 ± 40 mb and 93 ± 14 mb for the 177 keV and 114 keV groups respectively. The resulting dynamic n-source is the most intense which can be produced by this method.",

author = "R. Moreh and R. Fedorowicz and Prestwich, \{W. V.\} and Kennett, \{T. J.\} and Islam, \{M. A.\}",

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TY - JOUR

T1 - A strong dynamic neutron source based on the 209Bi(γ, n) reaction

AU - Moreh, R.

AU - Fedorowicz, R.

AU - Prestwich, W. V.

AU - Kennett, T. J.

AU - Islam, M. A.

PY - 1991/11/15

Y1 - 1991/11/15

N2 - An intense dynamic n-source, I = 105 n/s having two n-groups En = 177 keV and 114 keV is reported. It is based on the Bi(γ, n) reaction where a chance overlap occurs between a γ-line of the Cu(n, γ) reaction and a nuclear level at 7637 keV in 209Bi. The thermal neutrons which induces the Cu(n, γ) reaction are obtained from a reactor. The spin, parity and total and radiative widths of the 7637 keV level in Bi were determined. The resonance cross sections for n-production are: σγn = 275 ± 40 mb and 93 ± 14 mb for the 177 keV and 114 keV groups respectively. The resulting dynamic n-source is the most intense which can be produced by this method.

AB - An intense dynamic n-source, I = 105 n/s having two n-groups En = 177 keV and 114 keV is reported. It is based on the Bi(γ, n) reaction where a chance overlap occurs between a γ-line of the Cu(n, γ) reaction and a nuclear level at 7637 keV in 209Bi. The thermal neutrons which induces the Cu(n, γ) reaction are obtained from a reactor. The spin, parity and total and radiative widths of the 7637 keV level in Bi were determined. The resonance cross sections for n-production are: σγn = 275 ± 40 mb and 93 ± 14 mb for the 177 keV and 114 keV groups respectively. The resulting dynamic n-source is the most intense which can be produced by this method.

UR - https://www.scopus.com/pages/publications/44949273243

U2 - 10.1016/0168-9002(91)90255-O

DO - 10.1016/0168-9002(91)90255-O

M3 - Article

AN - SCOPUS:44949273243

SN - 0168-9002

VL - 309

SP - 503

EP - 507

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 3

ER -

A strong dynamic neutron source based on the ²⁰⁹Bi(γ, n) reaction

Abstract

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