Anti-Compton shield for Compex germanium detector modules
(2023) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 1056.- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/a45ee739-b667-4472-909e-aae0b7516626
- author
- Hrabar, Yuliia LU ; Sarmiento Pico, Luis LU ; Golubev, Pavel LU ; Bobovnikov, O. ; Cox, Daniel LU and Rudolph, Dirk LU
- organization
- publishing date
- 2023-09-14
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- nuclear structure, scintillators, BGO crystals, anti-Compton shield
- in
- Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
- volume
- 1056
- article number
- 168682
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85171889203
- ISSN
- 0168-9002
- DOI
- 10.1016/j.nima.2023.168682
- project
- Characterization of the Anti-Compton Shield for COMPEX Germanium Detectors and Proton-gamma Spectroscopy in the Upper fp Shell
- Characterization of New Superheavy Elements
- Nuclear Structure at the Limits: Isotope-selective Spectroscopy
- language
- English
- LU publication?
- yes
- id
- a45ee739-b667-4472-909e-aae0b7516626
- alternative location
- https://www.sciencedirect.com/science/article/pii/S0168900223006721
- date added to LUP
- 2023-09-14 22:14:11
- date last changed
- 2023-12-17 04:06:56
@article{a45ee739-b667-4472-909e-aae0b7516626, abstract = {{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 <sup>60</sup>Co, <sup>133</sup>Ba, and <sup>137</sup>Cs sources. The results were compared to comprehensive Geant4 simulations. The ~70% improvement of the peak-to-total ratio for the <sup>137</sup>Cs 662-keV γ-ray peak is in good agreement with expectations from the simulations. A <sup>133</sup>Ba source exemplifies decay schemes of odd-<i>A</i> superheavy nuclei. Congruence between measured and simulated spectra indicates that the Compex plus ACS multi-detector module is well understood.}}, author = {{Hrabar, Yuliia and Sarmiento Pico, Luis and Golubev, Pavel and Bobovnikov, O. and Cox, Daniel and Rudolph, Dirk}}, issn = {{0168-9002}}, keywords = {{nuclear structure; scintillators; BGO crystals; anti-Compton shield}}, language = {{eng}}, month = {{09}}, publisher = {{Elsevier}}, series = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}}, title = {{Anti-Compton shield for Compex germanium detector modules}}, url = {{http://dx.doi.org/10.1016/j.nima.2023.168682}}, doi = {{10.1016/j.nima.2023.168682}}, volume = {{1056}}, year = {{2023}}, }