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A new HPGe setup at Gelina for measurement of gamma-ray production cross-sections from inelastic neutron scattering
Ist Teil von
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2004-10, Vol.531 (3), p.375-391
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2004
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
A new setup was developed at the Geel Electron LINear Accelerator (Gelina) pulsed white neutron source for the measurement of continuous energy excitation functions of gamma-ray production cross-sections in neutron-induced inelastic scattering. Characteristic gamma-rays are identified, background-free, using the good pulse height resolution of two large volume High-Purity Germanium (HPGe) detectors. High incident-energy resolution is achieved by the time-of-flight method with a flight-path length of
200
m
and a time resolution of
8
ns
full-width at half-maximum. A neutron energy resolution of
1.1
keV
fwhm is obtained at
1
MeV
(36
keV
at
10
MeV)
. Absolute cross-sections are obtained by measuring the neutron flux with a
235
U
fission chamber. The setup was successfully applied to the determination of excitation curves of gamma-ray production cross-sections, level inelastic cross-sections and total inelastic cross-sections for
52
Cr
and
58
Ni
.