18 October 1996 Laboratory tests and simulations of pulse shape discrimination (PSD) technique for background reduction in germanium gamma-ray detectors
Author Affiliations +
For actively shielded, narrow aperture germanium spectrometers at balloon or spacecraft altitudes, the beta decay of radio-active nuclei is the dominant source of background in the 0.2 to 2 MeV energy range. This component of the background is internal to the germanium detectors (GeDs) and results from the activation of Ge nuclei by cosmic ray secondaries. The sensitivity of GeD spectrometers can be improved by rejecting beta-decay events, which deposit energy at a single site in the detector, while retaining photon events, which are predominantly multiple site at these energies. Pulse shape discrimination (PSD) techniques can distinguish between single- and multiple-site events by analyzing the shape of GeDs' current pulses. Here we present results of laboratory tests of PSD with a newly developed narrow-inner-bore (0.6 cm diameter) coaxial GeD and compare them to numerical simulations.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Said A. Slassi-Sennou, Said A. Slassi-Sennou, Steven E. Boggs, Steven E. Boggs, Bryon Philhour, Bryon Philhour, Robert W. Campbell, Robert W. Campbell, Paul T. Feffer, Paul T. Feffer, Robert P. Lin, Robert P. Lin, Steven McBride, Steven McBride, Henry J. Primbsch, Henry J. Primbsch, Chris P. Cork, Chris P. Cork, Fred S. Goulding, Fred S. Goulding, Paul N. Luke, Paul N. Luke, Norman W. Madden, Norman W. Madden, Don F. Malone, Don F. Malone, Richard H. Pehl, Richard H. Pehl, } "Laboratory tests and simulations of pulse shape discrimination (PSD) technique for background reduction in germanium gamma-ray detectors", Proc. SPIE 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions, (18 October 1996); doi: 10.1117/12.254020; https://doi.org/10.1117/12.254020


All-sky Compton imager
Proceedings of SPIE (July 23 2014)
Optimum shields for spaceborne gamma-ray spectrometers
Proceedings of SPIE (October 31 1990)
Coded mask telescope with a germanium array detector
Proceedings of SPIE (October 31 1993)
CdZnTe background measurements at balloon altitudes
Proceedings of SPIE (October 17 1996)

Back to Top