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 - http://www.scopus.com/inward/record.url?scp=44949273243&partnerID=8YFLogxK
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 -