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http://repositsc.nuczu.edu.ua/handle/123456789/19566Повний запис метаданих
| Поле DC | Значення | Мова |
|---|---|---|
| dc.contributor.author | V. Yakovlev | - |
| dc.date.accessioned | 2023-12-22T07:44:25Z | - |
| dc.date.available | 2023-12-22T07:44:25Z | - |
| dc.date.issued | 2023-02-09 | - |
| dc.identifier.citation | Nuclear Inst. and Methods in Physics Research, B | uk_UA |
| dc.identifier.uri | http://repositsc.nuczu.edu.ua/handle/123456789/19566 | - |
| dc.description | The temperature behavior of the activator luminescence kinetics excited by a pulsed electron beam in CsI:Tl crystal in the temperature range 77–295 K has been studied in detail. | uk_UA |
| dc.description.abstract | The amplitude-time parameters of the A-luminescence at 3.12 eV are studied for CsI:Tl irradiated by a pulsed electron beam at temperatures 77–295 K. It has been established that the 3.12 eV band kinetics varies differently with temperature in two temperature ranges of 77–170 K and 170–295 K. The increase in temperature from 77 K to 170 K causes the decrease in the exponential decay time constant, while at temperatures above 170 K, there appeared the post-radiation rise stage followed by the slow exponential decay stage. The temperature behavior of the A-luminescence kinetics is interpreted in term of the model, according to which (i) the A band is due to the allowed electron transition 61P1 → 61S0 of Tl+ ions and (ii) the main excitation mechanism across the entire cathodoluminescence spectrum of CsI:Tl at temperatures near room temperature is the spontaneous disinteтgration of donor–acceptor dipoles [Tl0Vk]. | uk_UA |
| dc.relation.ispartofseries | B;537 | - |
| dc.subject | Thallium doped cesium iodide | uk_UA |
| dc.subject | Cathodoluminescence | uk_UA |
| dc.subject | Decay kinetics | uk_UA |
| dc.subject | Color center | uk_UA |
| dc.title | A-luminescence in CsI:Tl crystal excited by pulsed electron beam | uk_UA |
| dc.type | Article | uk_UA |
| Розташовується у зібраннях: | Науково-дослідний центр | |
Файли цього матеріалу:
| Файл | Опис | Розмір | Формат | |
|---|---|---|---|---|
| NIMB_СТАТЬЯ_2023.pdf | It is shown, that two experimental facts: 1) the presence of the fast stage with τ ≤ 10 ns in the decay kinetics of the 3.12 eV luminescence band and 2) the inverse course of temperature dependences of initial intensity of the said band and the time constant of its exponential decay in the microsecond and sub-microsecond ranges, are best described in terms of the model, according to which the 3.12 eV luminescence band is caused by the 61 P1 → 61 S0 electron transition of Tl+ ion, which is allowed by selection rules. | 2,03 MB | Adobe PDF | Переглянути/Відкрити |
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