کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1827349 | 1027409 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature dependence of YAlO3(Ce) scintillation response to α-ray excitation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Temperature dependence of YAlO3(Ce) scintillation response to α-ray excitation Temperature dependence of YAlO3(Ce) scintillation response to α-ray excitation](/preview/png/1827349.png)
چکیده انگلیسی
The temperature dependence of light yield and decay constants of a cerium-doped yttrium aluminum perovskite [YAP(Ce)] scintillator excited by α-ray irradiation is studied between 290 and 460 K. The scintillation is found to be composed of three decay components with different temperature dependencies. A fast scintillation component with a decay time of â¼6ns is almost independent of temperature; the decay time of the main component decreases from 32 to 26 ns with increase in temperature from 290 to 400 K but increases above 400 K, and a slow component with a decay time larger than 240 ns becomes clearly visible at temperatures below 360 K. The total light yield increases slightly as the temperature increases up to 330 K and decreases above 330 K. These results are essentially interpreted using a two-shallow-trap model proposed by Wojtowicz et al., but an additional mechanism would be required at higher temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 611, Issue 1, 21 November 2009, Pages 69-75
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 611, Issue 1, 21 November 2009, Pages 69-75
نویسندگان
Y. Toriyabe, E. Yoshida, J. Kasagi,