BGO active shield for DEGAS

The new DEspec Germanium Array Spectrometer (DEGAS), used at GSI/FAIR, includes bismuth germanate (BGO) scintillation detectors for active shielding to improve the sensitivity of its high-purity germanium (HPGe) detectors. The BGO detectors have a very high gamma-ray detection efficiency and can sup...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2024-05, Vol.1062, p.169157, Article 169157
Hauptverfasser:	Kosir, G., Vesic, J., Kojouharov, I., Schaffner, H., Gerl, J., Kurz, N., Reese, M., Vencelj, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Anti-Compton shield BGO detectors Germanium spectrometers GSI/FAIR Nuclear structure SiPM
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The new DEspec Germanium Array Spectrometer (DEGAS), used at GSI/FAIR, includes bismuth germanate (BGO) scintillation detectors for active shielding to improve the sensitivity of its high-purity germanium (HPGe) detectors. The BGO detectors have a very high gamma-ray detection efficiency and can suppress background, such as Compton-scattered photons, by operating in an anti-coincidence veto mode with the germanium detectors. The BGO system was characterized and its performance was compared to simple gamma-ray propagation simulations.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2024.169157