A Germanium Detector with Optimized Compton Veto for High Sensitivity at Low Energy Metadata

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Title

  • Main Title A Germanium Detector with Optimized Compton Veto for High Sensitivity at Low Energy

Creator

  • Author: Friedrich, S
    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: 2011-11-30

Language

  • English

Description

  • Content Description: We have built a prototype germanium detector with a Compton veto that is optimized for high sensitivity in the low-energy range around {approx}100 keV. It is specifically designed to address the problem to directly detect plutonium gamma emissions in spent nuclear fuel by non-destructive assay. This is not possible with current detectors due to the large low-energy background of Compton-scattered high-energy radiation from the fission products, whose gamma flux is at least 6 to 7 orders of magnitude higher than the Pu signal. Our instrument is designed to assess the feasibility to selectively suppress the background in the low-energy region around {approx}100 keV with the strongest Pu X-ray and gamma emissions lines. It employs a thin Ge detector with a large Compton veto directly behind it to suppress the background from forward-scattered radiation by anti-coincidence vetoing. This report summarizes the design considerations and the performance of the instrument.
  • Physical Description: PDF-file: 11 pages; size: 4.3 Mbytes

Subject

  • Keyword: Plutonium-Gamma
  • Keyword: Radiations
  • STI Subject Categories: 38 Radiation Chemistry, Radiochemistry, And Nuclear Chemistry
  • Keyword: Fission Products
  • Keyword: Sensitivity
  • STI Subject Categories: 11 Nuclear Fuel Cycle And Fuel Materials
  • STI Subject Categories: 22 General Studies Of Nuclear Reactors
  • Keyword: Nuclear Fuels
  • Keyword: Design
  • Keyword: Ge Semiconductor Detectors
  • STI Subject Categories: 12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities
  • STI Subject Categories: 73 Nuclear Physics And Radiation Physics
  • Keyword: Spent Fuels
  • Keyword: Performance

Collection

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

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: LLNL-TR-518852
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/1033733
  • Office of Scientific & Technical Information Report Number: 1033733
  • Archival Resource Key: ark:/67531/metadc836293
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