Modeling the Charge Collection Efficiency in the Li-diffused Inactive Layer of a P-type Point-Contact Germanium Detector

Autor:	Dai, W. H., Ma, H., Yue, Q., Yang, L. T., Zeng, Z., Cheng, J. P., Li, J. L.
Rok vydání:	2022
Předmět:	Physics - Instrumentation and Detectors
Zdroj:	Applied Radiation and Isotopes 193 (2023) 110638
Druh dokumentu:	Working Paper
DOI:	10.1016/j.apradiso.2022.110638
Popis:	A model of the Li-diffused inactive layer in P-type high purity germanium detectors is built to describe the transportation of charge carriers and calculate the charge collection efficiency therein. The model is applied to calculate charge collection efficiency of a P-type point-contact germanium detector used in rare event physics experiments and validated in another P-type semi-planar germanium detector. The calculated charge collection efficiency curves are well consistent with measurements for both detectors. Effects of the Li doping processes on the charge collection efficiency are discussed based on the model. This model can be easily extended to other P-type germanium detectors, for instance, the P-type broad-energy Ge detector, and the P-type inverted-coaxial point-contact detector. Comment: 13 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2207.11902 Zobrazit plný text záznamu View this record from Arxiv