Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы
Clarification of the influence of defects on detecting properties of CdZnTe detectors and understanding of the behavior of defects under the influence of aggressive radiation environment are very important to improve detector performance. The objective was to study the charges collection efficiency...
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| Date: | 2016 |
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| Language: | Ukrainian |
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PE "Politekhperiodika", Book and Journal Publishers
2016
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oai:tkea.com.ua:article-2522025-05-30T19:31:48Z Detector properties of Cd0,9Zn0,1Te:Al under the influence of low doze gamma irradiation Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы Kondrik, A. I. CdZnTe gamma-irradiation detectors computer simulation deep levels CdZnTe гамма-облучение детекторы моделирование глубокие уровни Clarification of the influence of defects on detecting properties of CdZnTe detectors and understanding of the behavior of defects under the influence of aggressive radiation environment are very important to improve detector performance. The objective was to study the charges collection efficiency and the resistivity of Cd0,9Zn0,1Te:Al detectors operating under the influence of low dose gamma-radiation. The study was carried out by computer simulation, where initial data were provided by the experiment results of other researchers. The possible reason for the change of measured signatures of defect levels in high resistance Cd0,9Zn0,1Te:Al during gamma irradiation and 1 month later is the change in compensation degree of the material. The changes in the properties of Cd0,9Zn0,1Te:Al detector have been researched depending on the concentration and energy level of the deep donor for different concentrations of deep acceptors, as well as on the degree of alloying with aluminum. The negative factor for registering properties of Cd0,9Zn0,1Te:Al detector is increased concentration of zinc vacancies, which may arise at manufacturing stage and under influence of γ-irradiation during operation. The degradation of properties of irradiated detector may occur due to the offset dependence of the resistivity on the aluminum dopant concentration N(Al) towards to higher concentrations of Al when the value of doping is not enough large. Only resistivity will be reduced and charge collection efficiency may increase. The increase in resistivity of Cd0,9Zn0,1Te and charges collection efficiency of the detector occur when there is a sufficiently high level of doping the material with aluminum. Проведен анализ и указаны возможные причины изменений характеристик глубоких уровней в высокоомном Cd0,9Zn0,1Te:Al после g-облучения и в течение пострадиационной релаксации. Исследована зависимость свойств плоскопараллельного детектора на основе Cd0,9Zn0,1Te:Al от концентрации и уровня энергии глубокого донора, а также от степени легирования алюминием. Определены условия деградации регистрирующих свойств детектора на начальном этапе его эксплуатации под воздействием агрессивной радиационной среды. PE "Politekhperiodika", Book and Journal Publishers 2016-02-23 Article Article Peer-reviewed Article application/pdf https://www.tkea.com.ua/index.php/journal/article/view/TKEA2016.1.12 10.15222/TKEA2016.1.12 Technology and design in electronic equipment; No. 1 (2016): Tekhnologiya i konstruirovanie v elektronnoi apparature; 12-19 Технологія та конструювання в електронній апаратурі; № 1 (2016): Технология и конструирование в электронной аппаратуре; 12-19 3083-6549 3083-6530 uk https://www.tkea.com.ua/index.php/journal/article/view/TKEA2016.1.12/220 Copyright (c) 2016 A. I. Kondrik http://creativecommons.org/licenses/by/4.0/ |
| institution |
Technology and design in electronic equipment |
| baseUrl_str |
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| datestamp_date |
2025-05-30T19:31:48Z |
| collection |
OJS |
| language |
Ukrainian |
| topic |
CdZnTe гамма-облучение детекторы моделирование глубокие уровни |
| spellingShingle |
CdZnTe гамма-облучение детекторы моделирование глубокие уровни Kondrik, A. I. Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| topic_facet |
CdZnTe gamma-irradiation detectors computer simulation deep levels CdZnTe гамма-облучение детекторы моделирование глубокие уровни |
| format |
Article |
| author |
Kondrik, A. I. |
| author_facet |
Kondrik, A. I. |
| author_sort |
Kondrik, A. I. |
| title |
Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| title_short |
Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| title_full |
Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| title_fullStr |
Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| title_full_unstemmed |
Детекторные свойства Cd0,9Zn0,1Te:Al под влиянием гамма-облучения малой дозы |
| title_sort |
детекторные свойства cd0,9zn0,1te:al под влиянием гамма-облучения малой дозы |
| title_alt |
Detector properties of Cd0,9Zn0,1Te:Al under the influence of low doze gamma irradiation |
| description |
Clarification of the influence of defects on detecting properties of CdZnTe detectors and understanding of the behavior of defects under the influence of aggressive radiation environment are very important to improve detector performance. The objective was to study the charges collection efficiency and the resistivity of Cd0,9Zn0,1Te:Al detectors operating under the influence of low dose gamma-radiation. The study was carried out by computer simulation, where initial data were provided by the experiment results of other researchers. The possible reason for the change of measured signatures of defect levels in high resistance Cd0,9Zn0,1Te:Al during gamma irradiation and 1 month later is the change in compensation degree of the material. The changes in the properties of Cd0,9Zn0,1Te:Al detector have been researched depending on the concentration and energy level of the deep donor for different concentrations of deep acceptors, as well as on the degree of alloying with aluminum. The negative factor for registering properties of Cd0,9Zn0,1Te:Al detector is increased concentration of zinc vacancies, which may arise at manufacturing stage and under influence of γ-irradiation during operation. The degradation of properties of irradiated detector may occur due to the offset dependence of the resistivity on the aluminum dopant concentration N(Al) towards to higher concentrations of Al when the value of doping is not enough large. Only resistivity will be reduced and charge collection efficiency may increase. The increase in resistivity of Cd0,9Zn0,1Te and charges collection efficiency of the detector occur when there is a sufficiently high level of doping the material with aluminum. |
| publisher |
PE "Politekhperiodika", Book and Journal Publishers |
| publishDate |
2016 |
| url |
https://www.tkea.com.ua/index.php/journal/article/view/TKEA2016.1.12 |
| work_keys_str_mv |
AT kondrikai detectorpropertiesofcd09zn01tealundertheinfluenceoflowdozegammairradiation AT kondrikai detektornyesvojstvacd09zn01tealpodvliâniemgammaoblučeniâmalojdozy |
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2025-09-24T17:30:37Z |
| last_indexed |
2025-09-24T17:30:37Z |
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