کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8180558 1526430 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization study of a new UV-SiPM with low dark count rate
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Characterization study of a new UV-SiPM with low dark count rate
چکیده انگلیسی
SiPM-based detectors are foreseen as good candidates for low light level detection applications requiring timing resolution in the few hundreds of picoseconds range. We report here the development of a UV enhanced SiPM with low dark count rate particularly well suited for high energy physics and medical imaging. In order to address different applications, we have produced a range of 1, 3, and 5 mm SiPMs with 25, 50, and 100 μm micro-cells size (1600, 400, and 100 micro-cells) with geometrical efficiencies ranging from 21% to 79%. Our highest geometrical efficiency 1 mm SiPM has reached a PDE of 40% in photon counting mode at 440 nm and a dark count rate as low as 200 kcps/mm2 at 25 °C and an overvoltage of 3%. To our knowledge this is the lowest dark count rate under above conditions reported so far. Breakdown voltage is in the 130-150 V range, quench resistance is in the order of 1.5 MΩ, while the chip capacitance is of the order of 10 pF/mm2. All characteristics from this novel low dark count SiPM design will be presented and compared, further developments and improvements will also be discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 695, 11 December 2012, Pages 35-39
نویسندگان
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