Simplified slow anti-coincidence circuit for Compton suppression systems

  • Al-Azmi D
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Abstract

Slow coincidence circuits for the anti-coincidence measurements have been considered for use in Compton suppression technique. The simplified version of the slow circuit has been found to be fast enough, satisfactory and allows an easy system setup, particularly with the advantage of the automatic threshold setting of the low-level discrimination. A well-type NaI detector as the main detector surrounded by plastic guard detector has been arranged to investigate the performance of the Compton suppression spectrometer using the simplified slow circuit. The system has been tested to observe the improvement in the energy spectra for medium to high-energy gamma-ray photons from terrestrial and environmental samples. © 2008 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Anti-coincidence measurements
  • Compton suppression
  • Simplified slow circuit
  • Slow coincidence circuit
  • Well-type NaI(Tl) detector

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