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EnglishIn this work, we present a novel Position-Sensitive Silicon Photomultiplier based on a charge sharing architecture, which we call Linearly-Graded SiPM (LG-SiPM). We produced both 4x4 mm2 and 8x8 mm2 2D LG-SiPM prototypes with this scheme. The LG-SiPM provides high resolution, low distortion and a very fast output signal, which is fundamental for obtaining a good timing performance. To verify the spatial resolution of the device, we coupled the 4x4 mm2 LG-SiPM prototype to a 4x4 mm2 pixelated LYSO scintillator, with a pitch of 0.8 mm and a height of 10 mm. Under uniform 511 keV irradiation, we were able to easily distinguish the crystal pixels in the flood map and to measure an energy resolution of 18 %.
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| Titolo: | A Novel Approach to Position-Sensitive Silicon Photomultipliers: First Results |
| Autori: | |
| Data di pubblicazione: | 2013 |
| Abstract: | In this work, we present a novel Position-Sensitive Silicon Photomultiplier based on a charge sharing architecture, which we call Linearly-Graded SiPM (LG-SiPM). We produced both 4x4 mm2 and 8x8 mm2 2D LG-SiPM prototypes with this scheme. The LG-SiPM provides high resolution, low distortion and a very fast output signal, which is fundamental for obtaining a good timing performance. To verify the spatial resolution of the device, we coupled the 4x4 mm2 LG-SiPM prototype to a 4x4 mm2 pixelated LYSO scintillator, with a pitch of 0.8 mm and a height of 10 mm. Under uniform 511 keV irradiation, we were able to easily distinguish the crystal pixels in the flood map and to measure an energy resolution of 18 %. |
| Handle: | http://hdl.handle.net/11582/207418 |
| ISBN: | 978-1-4799-0533-1 978-1-4799-0534-8 978-1-4799-3423-2 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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