دورية أكاديمية
Identification and simulation of surface alpha events on passivated surfaces of germanium detectors and the influence of metalisation
| العنوان: | Identification and simulation of surface alpha events on passivated surfaces of germanium detectors and the influence of metalisation |
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| المؤلفون: | I. Abt, C. Gooch, F. Hagemann, L. Hauertmann, X. Liu, O. Schulz, M. Schuster, A. J. Zsigmond |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-16 (2022) |
| بيانات النشر: | SpringerOpen, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract Events from alpha interactions on the surfaces of germanium detectors are a major contribution to the background in germanium-based searches for neutrinoless double-beta decay. Surface events are subject to charge trapping, affecting their pulse shape and reconstructed energy. A study of alpha events on the passivated end-plate of a segmented true-coaxial n-type high-purity germanium detector is presented. Charge trapping is analysed in detail and an existing pulse-shape analysis technique to identify alpha events is verified with mirror pulses observed in the non-collecting channels of the segmented test detector. The observed radial dependence of charge trapping confirms previous results. A dependence of the probability of charge trapping on the crystal axes is observed for the first time. A first model to describe charge trapping effects within the framework of the simulation software SolidStateDetectors.jl is introduced. The influence of metalisation on events from low-energy gamma interactions close to the passivated surface is also presented. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6052 |
| Relation: | https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-022-11064-8 |
| URL الوصول: | https://doaj.org/article/c1bb9dfde9e5472fae63aae8bcbda230 |
| رقم الأكسشن: | edsdoj.1bb9dfde9e5472fae63aae8bcbda230 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 14346052 |
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| DOI: | 10.1140/epjc/s10052-022-11064-8 |