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
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Further process of polarization within a pixellated CdZnTe detector under intense x-ray irradiation
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
نویسندگان
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