Methods for increasing the efficiency of Compton imagers Metadata

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Title

  • Main Title Methods for increasing the efficiency of Compton imagers

Creator

  • Author: Mihailescu, L
    Creator Type: Personal
  • Author: Vetter, K
    Creator Type: Personal
  • Author: Burks, M
    Creator Type: Personal
  • Author: Chivers, D
    Creator Type: Personal
  • Author: Cunningham, M
    Creator Type: Personal
  • Author: Gunter, D
    Creator Type: Personal
  • Author: Nelson, K E
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Date

  • Creation: 2005-11-15

Language

  • English

Description

  • Content Description: A Compton scatter camera based on position sensitive, planar Ge and Si(Li) detectors with segmented electrodes is being developed at LLNL. This paper presents various methods that were developed to increase the position resolution of the detectors, the granularity and capability to reconstruct the scattering sequence of the gamma-ray within the detectors. All these methods help to increase the efficiency of the imager, by accepting more photons in the final image. The initial extent and diffusion of charge-carrier clouds inside the semiconductor detectors are found to affect profoundly the fraction of interactions that deposit charge in multiple adjacent electrodes. An accurate identification of these charge-shared interactions is a key factor in correctly reconstructing the position of interactions in the detector.
  • Physical Description: PDF-file: 8 pages; size: 0 Kbytes

Subject

  • Keyword: Lawrence Livermore National Laboratory
  • Keyword: Diffusion
  • Keyword: Cameras
  • Keyword: Clouds
  • Keyword: Electrodes
  • Keyword: Semiconductor Detectors
  • Keyword: Scattering
  • STI Subject Categories: 62 Radiology And Nuclear Medicine
  • Keyword: Efficiency
  • STI Subject Categories: 46 Instrumentation Related To Nuclear Science And Technology
  • Keyword: Li-Drifted Si Detectors
  • STI Subject Categories: 73 Nuclear Physics And Radiation Physics
  • Keyword: Resolution
  • Keyword: Photons

Source

  • Conference: Presented at: IEEE Nuclear Science Symposium, Fajardo, PR, United States, Oct 22 - Oct 29, 2005

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: UCRL-CONF-217922
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 888616
  • Archival Resource Key: ark:/67531/metadc876537