کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1823397 | 1526425 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Further process of polarization within a pixellated CdZnTe detector under intense x-ray irradiation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
It has been observed that pixellated CdZnTe detectors fabricated from crystals experience an extending of space charge region in the polarized state when exposed to a high flux of x-rays and a low flux of x-rays. In this case, in some areas of the CZT detector polarization occurs without high incident flux. Results from these studies reveal that at very high photon flux rates, a space charge region with high density develops and extends, consistent with the accumulation of positive space charge due to the trapping of free-carrier holes created by the x-ray irradiation. The extending of space charge region observed without high x-ray has a direct influence on the irradiation hardness and charge collection efficiency of the devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 700, 1 February 2013, Pages 75–80
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 700, 1 February 2013, Pages 75–80
نویسندگان
Xi Wang, Shali Xiao, Miao Li, Liuqiang Zhang, Yulin Cao, Yuxiao Chen,