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Proceedings Paper

Progress in evaluation of multi-site rejection techniques in a highly segmented HPGe detector in a low-background environment
Author(s): David Campbell; Kai Vetter; Kevin Lesko; Reyco Henning; Yuen-Dat Chan; Allan Poon; Michelle Perry
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Paper Abstract

A 40-fold segmented coaxial HPGe detector was operated in a low background counting facility for 1 year to experimentally evaluate background rejection efficiencies of proposed segmentation and pulse shape discrimination techniques for the proposed Majorana double-beta decay experiment. Significantly diminished resolution for multisegment events was encountered due to inter-segment cross-talk. A cross-talk correlation matrix has been constructed allowing the restoration of acceptable energy resolution for multi-segment events. Efforts to determine the optimum segmentation pattern for multi-site interaction events are ongoing.

Paper Details

Date Published: 30 August 2006
PDF: 4 pages
Proc. SPIE 6319, Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII, 63190G (30 August 2006); doi: 10.1117/12.683854
Show Author Affiliations
David Campbell, Lawrence Livermore National Lab. (United States)
Kai Vetter, Lawrence Livermore National Lab. (United States)
Kevin Lesko, Lawrence Berkeley National Lab. (United States)
Reyco Henning, Lawrence Berkeley National Lab. (United States)
Yuen-Dat Chan, Lawrence Berkeley National Lab. (United States)
Allan Poon, Lawrence Berkeley National Lab. (United States)
Michelle Perry, Florida State Univ. (United States)
Lawerence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 6319:
Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII
F. Patrick Doty; Larry A. Franks; Arnold Burger; H. Bradford Barber; Hans Roehrig; Ralph B. James, Editor(s)

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