Volume 411, Number 1, November III 2003
Special letters issue on: first science with integral
|Page(s)||L85 - L90|
|Published online||17 November 2003|
Letter to the Editor
Neutron-induced nuclear reactions and degradation in germanium detectors
Institut de Physique Nucléaire, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
2 Institut Universitaire de Technologie, Université Paul Sabatier, 31077 Toulouse, France
3 Centre d'Étude Spatiale des Rayonnements, Université Paul Sabatier, 31028 Toulouse, France
4 CEA-Saclay, DSM/DAPNIA/SAP, 91191 Gif-sur-Yvette, France
5 CEA-Bruyères, DAM/DPTA, 91180 Bruyères-le-Chatel, France
6 Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, 1050 Bruxelles, Belgium
Corresponding author: P. Leleux, email@example.com
Accepted: 4 September 2003
We have measured cross sections of neutron-induced nuclear reactions leading to the delayed production of γ-ray lines similar to the ones of astrophysical interest. Conclusions were drawn concerning the expected background in the 26Al 1809 keV line and the 7Be 478 keV line in SPI. The neutron-induced degradation of Ge detectors was studied vs. the neutron energy, the neutron fluence and the detector temperature. Performance recovery of the detectors was studied for different annealing temperatures. Optimum temperature and times for annealing were determined.
Key words: neutron-induced background, neutron damage
© ESO, 2003
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