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Pavel Golubev

Pavel Golubev

Affiliated

Pavel Golubev

Anti-Compton shield for Compex germanium detector modules

Author

  • Yuliia Hrabar
  • Luis Sarmiento Pico
  • Pavel Golubev
  • O. Bobovnikov
  • Daniel Cox
  • Dirk Rudolph

Summary, in English

A bismuth-germanate (BGO) anti-Compton shield (ACS) for Compex germanium detector modules was designed, built, and characterised. BGO performance was evaluated for light output and energy resolution. The response of the ACS shield and its impact on germanium detector spectra was measured for standard 60Co, 133Ba, and 137Cs sources. The results were compared to comprehensive Geant4 simulations. The ~70% improvement of the peak-to-total ratio for the 137Cs 662-keV γ-ray peak is in good agreement with expectations from the simulations. A 133Ba source exemplifies decay schemes of odd-A superheavy nuclei. Congruence between measured and simulated spectra indicates that the Compex plus ACS multi-detector module is well understood.

Department/s

  • Particle and nuclear physics

Publishing year

2023

Language

English

Publication/Series

Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

Volume

1056

Document type

Article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • nuclear structure
  • scintillators
  • BGO crystals
  • anti-Compton shield
  • SDG 4 - Quality Education
  • SDG 17 - Partnerships for the Goals

Status

Published

Project

  • Decay Modes of Exotic Nuclei
  • Characterization of New Superheavy Elements
  • Nuclear Structure at the Limits: Isotope-selective Spectroscopy

ISBN/ISSN/Other

  • ISSN: 0168-9002