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

Institute for Scintillation Materials, NAS of Ukraine, 61001 Kharkiv

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

Subject classification (UKÄ)

Subatomic Physics

Free keywords

nuclear structure
scintillators
BGO crystals
anti-Compton shield

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10.1016/j.nima.2023.168682Licence: CC BY

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

6 Article
1 Paper in conference proceeding
1 Review article

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A ²⁸⁹Fl
Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L. G., Clark, R. M., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Åberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Carlsson, B. G., Düllmann, C. E., Eberth, J., Fahlander, C., & 34 othersForsberg, U., Gates, J. M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R-D., Hrabar, Y., Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kratz, J. V., Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C., Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I., Runke, J., Schädel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N. & Uusitalo, J., 2023 Feb 6, In: Physical Review C. 107, 2, 6 p., L021301.
Research output: Contribution to journal › Article › peer-review

Open Access
File
28 Downloads (Pure)
Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, ²⁸²Cn, and spontaneous fission branches
Såmark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Albertsson, M., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Åberg, S., Albers, H. M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Düllmann, C. E., Eberth, J., Fahlander, C., & 34 othersForsberg, U., Gates, J. M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R-D., Hrabar, Y., Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kratz, J. V., Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C., Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I., Runke, J., Schädel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N. & Uusitalo, J., 2023 Feb 6, In: Physical Review C. 107, 2, 12 p., 024301.
Research output: Contribution to journal › Article › peer-review

Open Access
File
32 Downloads (Pure)
Results and plans for nuclear spectroscopy of superheavy nuclei: the Lund perspective
Rudolph, D., 2022 Dec 12, In: European Physical Journal A. 58, 12, 19 p., 242.
Research output: Contribution to journal › Review article › peer-review

Open Access

3 Active

Characterization of the Anti-Compton Shield for COMPEX Germanium Detectors and Proton-gamma Spectroscopy in the Upper fp Shell
Hrabar, Y., Sarmiento Pico, L., Golubev, P. & Rudolph, D.
Crafoord Foundation
2019/12/15 → …
Project: Dissertation
ChaSE Lundium: Characterization of New Superheavy Elements
Rudolph, D., Åberg, S., Carlsson, G., Düllmann, C. E., Golubev, P., Sarmiento Pico, L., Forsberg, U., Toivanen, J., Ward, D., Cox, D., Lorenz, C., Såmark-Roth, A., Albertsson, M., Ljungberg, J., Hrabar, Y., Lindholm, Y., Lindqvist, K., Lundberg, M. & Andersson, P.
Knut and Alice Wallenberg Foundation, The Nobel Foundation
2016/01/01 → 2026/12/31
Project: Research

File
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
Rudolph, D., Fahlander, C., Golubev, P., Sarmiento Pico, L., Cox, D., Hrabar, Y., Såmark-Roth, A., Forsberg, U., Lorenz, C., Lalovic, N., Lalovic, N., Forsberg, U., Gellanki, J., Hoischen, R., Johansson, E., Andersson, L., du Rietz, R., Ekman, J. & Andreoiu, C.
Swedish Research Council
2002/01/01 → 2027/12/31
Project: Research

Platform for Advanced Radiaton Detectors
Pavel Golubev (Manager)
Department of Physics
Infrastructure

1 Invited talk

Spectroscopy Along Flerovium Decay Chains
Dirk Rudolph (Invited speaker)
2023 Oct 13 → 2023 Oct 16
Activity: Talk or presentation › Invited talk

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 ~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",

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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",

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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

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

Subject classification (UKÄ)

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UN SDGs

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