کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8173050 | 1526339 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance of ultra-small silicon photomultiplier array with active area of 0.12Â mmÃ0.12Â mm
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the performance of an ultra-small silicon photomultiplier (SiPM) line array with 7 elements of 0.12Ã0.12Â mm2 in active area, 0.2Â mm in pitch and 120 micro cells in one element. The device features an epitaxial bulk quenching resistor concept, demonstrated high geometrical fill factor of 41% and photon detection efficiency (PDE) of 25.4% in the wavelength region between 430Â nm and 480Â nm while retaining high micro cell density around 10Â 000Â mmâ2 and ~3Â ns FWHM of dark pulses width; it also demonstrated dark count rate of less than 28.7Â kHz, optical crosstalk of the order of 2% to 4%, and excellent photon number discrimination. A 0.15Â mmÃ1.6Â mmÃ1.6Â mm lutetium yttrium oxyorthosilicate (LYSO) crystal, corresponding to the width, length and height respectively, was successfully coupled to the 1Ã7 SiPM array for possible ultra-highly resolved positron emission tomography (PET) applications. This novel type of device has advantages particularly for small active area since the performances, such as PDE and response speed is one of the best among SiPMs with similarly high density of micro cells. It may pave a way for this type of SiPM as a promising pixel position sensitive device in imaging sensor applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 787, 1 July 2015, Pages 38-41
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 787, 1 July 2015, Pages 38-41
نویسندگان
Wang Yue, Chen Zongde, Li Chenhui, He Ran, Wang Shenyuan, Li Baicheng, Wang Ruiheng, Liang Kun, Yang Ru, Han Dejun,