HPGe compton suppression using pulse shape analysis

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We present a new technique for High Purity Germanium (HPGe) Compton suppression using pulse shape analysis (PSA). The novel aspect of our approach involves a complete unfolding of the charge pulse shape into a discrete sum of component y-ray interactions. Using the energy and position information obtained from such an unfolding, an algorithm is then applied which favorably rejects Compton escape events. The advantage of the current PSA approach, as compared with other recent approaches, is the potential to reject not only single-site escape events, but also multiple site escape events. Here we discuss the details of our algorithm, and ... continued below

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18 p.

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Schmid, G.J.; Beckedahl, D.; Blair, J.J. & Kammeraad, J.E. April 15, 1998.

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Description

We present a new technique for High Purity Germanium (HPGe) Compton suppression using pulse shape analysis (PSA). The novel aspect of our approach involves a complete unfolding of the charge pulse shape into a discrete sum of component y-ray interactions. Using the energy and position information obtained from such an unfolding, an algorithm is then applied which favorably rejects Compton escape events. The advantage of the current PSA approach, as compared with other recent approaches, is the potential to reject not only single-site escape events, but also multiple site escape events. Here we discuss the details of our algorithm, and present experimental results from a real-time implementation on a 5 cm X 5 cm HPGe. An experimental comparison with a standard BGO suppresser is shown. We also discuss the possible improvements to the current PSA approach that could be obtained if the HPGe could be highly segmented on the outer contact.

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18 p.

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OSTI as DE98057451

Other: FDE: PDF; PL:

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  • 9. symposium on radiation measurements and applications, Ann Arbor, MI (United States), 11-14 May 1998

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  • Other: DE98057451
  • Report No.: UCRL-JC--130495
  • Report No.: CONF-980545--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 651585
  • Archival Resource Key: ark:/67531/metadc707303

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 15, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 10, 2017, 2:12 p.m.

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Schmid, G.J.; Beckedahl, D.; Blair, J.J. & Kammeraad, J.E. HPGe compton suppression using pulse shape analysis, article, April 15, 1998; California. (digital.library.unt.edu/ark:/67531/metadc707303/: accessed September 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.