کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8174478 | 1526355 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strengthened electric field technique implemented on CZT detectors
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This paper presents the development of a simple electrode structure which only requires a simple readout and is suitable for a large cube CZT crystal, such as a 10Ã10Ã10Â mm3 crystal. A technique named the strengthened electric field (SEF) is investigated in detail and implemented to improve the performance of the detector. Signal processing was also studied to demonstrate its feasibility to further improve the detector's performance. A SEF line anode (SEFLA) prototype and an SEF point anode (SEFPA) prototype were designed, fabricated and tested. Experimental results demonstrated the effectiveness of the SEF technique. The SEFLA detector achieved an energy resolution of 1.6% (FWHM)@662Â keV with 4.0Â keV noise (FWHM) and SEFPA 1.8% with 5.0Â keV noise. Cathode signal is used to do both the rejection and the correction in the SEFLA prototype. At the cost of detection efficiency, the low energy tail is reduced, while the energy resolution and the P/C ratio are further improved. Possible improvements of the detectors are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 771, 21 January 2015, Pages 93-97
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 771, 21 January 2015, Pages 93-97
نویسندگان
Fu Jianqiang, Li Yulan, Zhang Lan, Du Yingshuai, Yang Yigang, Liu Yinong, Niu Libo, Jiang Hao, Liu Yilin, Li Jun, Zhang Wei, Liu Yanqing, Li Yuanjing,