Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 564, Issue 1, Pages 267-274Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2006.04.055
Keywords
magnetic spectrometer; germanium detector; gamma-spectroscopy
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An array of HPGe detectors has been set up at the Big-Bite Spectrometer at AGOR cyclotron of KVI Groningen to allow coincident measurements of the gamma-decay of nuclei excited in inelastic hadron scattering at 100-400 MeV incident energies. Compared to previous experiments, where NaI detectors have been used, the energy resolution of the gamma-detection could be improved by more than one order of magnitude to about Delta E-gamma/E-gamma = 0.2% in the energy region of interest. The coincident measurement of the gamma-decay in inelastic hadron scattering experiments is very useful for the separation of nearby excitations, the assignment of multipolarities, the determination of branching ratios and to study the isospin character of bound excitations. The experimental setup and the results of a first (alpha, alpha'gamma) test experiment at E-alpha = 136 MeV on Ni-58 are presented. (c) 2006 Elsevier B.V. All rights reserved.
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