Pulse shapes from electron and photon induced events in segmented high-purity germanium detectors
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Experiments built to search for neutrinoless double beta-decay are limited in their sensitivity not only by the exposure but also by the amount of background encountered. Radioactive isotopes in the surrounding of the detectors which emit gamma-radiation are expected to be a significant source of background in the GERmanium Detector Array, GERDA. Methods to select electron induced events and discriminate against photon induced events inside a germanium detector are presented in this paper. The methods are based on the analysis of the time structure of the detector response. Data were taken with a segmented GERDA prototype detector. It is shown that the analysis of the time response of the detector can be used to distinguish multiply scattered photons from electrons.
KeywordsPulse Shape Monte Carlo Data Pulse Shape Analysis Library Method Double Escape Peak
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- 7.C.E. Aalseth, PhD Thesis, South Carolina University, UMI-30-06000Google Scholar
- 9.I. Abt et al., arXiv:nucl-ex/0701005Google Scholar
- 10.I. Abt et al., Nucl. Instrum. Methods A 577, 574 [arXiv:nucl-ex/0701004]Google Scholar
- 14.J. Hertz, A. Krogh, R.G. Palmer, Introduction to the Theory of Neural Computation (Addison Wesley, New York, 1991)Google Scholar
- 15.H.J. Ritter, T.M. Martinetz, K.J. Schulten, Neuronale Netze (Addison Wesley, New York, 1990)Google Scholar
- 21.I. Abt et al., to be published [arXiv:0708.0917]Google Scholar