Maneuski, D. , Gostilo, V. and Owens, A. (2019) TCAD simulation studies of novel geometries for CZT ring-drift detectors. Journal of Physics D: Applied Physics, 53(1), 015114. (doi: 10.1088/1361-6463/ab49b1)
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Abstract
In this work, technology computer-aided design (TCAD) simulation results of new CZT ring-drift detector geometries are presented. The physics model was developed and validated against the results from an existing device which had been comprehensively characterised at x-ray wavelengths. The model was then applied to new detector geometries and a systematic study of the parameters influencing charge collection performed. A comparison between one- two- and three-ring circle and semi-rectangular (or squircle) geometries is presented. In was found that charge collection with the squircle ring configuration was systematically better than the circular configuration and extends approximately m further from the collecting anode. In addition, a two-ring geometry device is shown to collect charge m and m further from the anode when compared to one- and three- ring geometries, respectively. Based on these results, we derive an optimum configuration which potentially can be multiplied on larger crystals, offering an increased charge collection volume without compromising energy resolution.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Maneuski, Dr Dima |
| Authors: | Maneuski, D., Gostilo, V., and Owens, A. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Journal of Physics D: Applied Physics |
| Publisher: | IOP Publishing |
| ISSN: | 0022-3727 |
| ISSN (Online): | 1361-6463 |
| Published Online: | 01 October 2019 |
| Copyright Holders: | Copyright © 2019 IOP Publishing Lts. |
| First Published: | First published in Journal of Physics D: Applied Physics 53(1):015114 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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