Anti-Compton shield for Compex germanium detector modules

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

doi:10.1016/j.nima.2023.168682

Anti-Compton shield for Compex germanium detector modules

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

Particle and nuclear physics

Institute for Scintillation Materials, NAS of Ukraine

Research output: Contribution to journal › Article › peer-review

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 plus ACS multi-detector module is well understood.

Original language	English
Article number	168682
Number of pages	8
Journal	Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume	1056
DOIs	https://doi.org/10.1016/j.nima.2023.168682
Publication status	Published - 2023 Sept 14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 4 Quality Education
SDG 17 Partnerships for the Goals

Subject classification (UKÄ)

Subatomic Physics

Free keywords

nuclear structure
scintillators
BGO crystals
anti-Compton shield

Access to Document

10.1016/j.nima.2023.168682Licence: CC BY

https://www.sciencedirect.com/science/article/pii/S0168900223006721Licence: CC BY

Cite this

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title = "Anti-Compton shield for Compex germanium detector modules",

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 \textasciitilde{}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.",

keywords = "nuclear structure, scintillators, BGO crystals, anti-Compton shield",

author = "Yuliia Hrabar and \{Sarmiento Pico\}, Luis and Pavel Golubev and O. Bobovnikov and Daniel Cox and Dirk Rudolph",

year = "2023",

month = sep,

day = "14",

doi = "10.1016/j.nima.2023.168682",

language = "English",

volume = "1056",

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

issn = "0168-9002",

publisher = "Elsevier",

}

TY - JOUR

T1 - Anti-Compton shield for Compex germanium detector modules

AU - Hrabar, Yuliia

AU - Sarmiento Pico, Luis

AU - Golubev, Pavel

AU - Bobovnikov, O.

AU - Cox, Daniel

AU - Rudolph, Dirk

PY - 2023/9/14

Y1 - 2023/9/14

N2 - 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.

AB - 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.

KW - nuclear structure

KW - scintillators

KW - BGO crystals

KW - anti-Compton shield

UR - https://www.scopus.com/pages/publications/85171889203

U2 - 10.1016/j.nima.2023.168682

DO - 10.1016/j.nima.2023.168682

M3 - Article

SN - 0168-9002

VL - 1056

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

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

M1 - 168682

ER -

Anti-Compton shield for Compex germanium detector modules

Abstract

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Anti-Compton shield for Compex germanium detector modules

Abstract

UN SDGs

Subject classification (UKÄ)

Free keywords

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Other files and links

Fingerprint

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