19 August 2014 64-element photodiode array for scintillation detection of x-rays
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Proceedings Volume 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors; 929104 (2014) https://doi.org/10.1117/12.2069837
Event: 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 2014, Lodz, Poland
Abstract
The paper presents the design, technology and parameters of a new, silicon 64-element linear photodiode array developed at the Institute of Electron Technology (ITE) for the detection of scintillations emitted by CsI scintillators (λ≈550 nm). The arrays are used in a device for examining the content of containers at border crossings under development at the National Centre for Nuclear Research. Two arrays connected with a scintillator block (128 CsI scintillators) form a 128-channel detection module. The array consists of 64 epiplanar photodiode structures (5.1 × 7.2 mm) and a 5.3 mm module. p+-ν-n+ photodiode structures are optimised for the detection of radiation of λ≈ 550 nm wavelength with no voltage applied (photovoltaic mode). The structures are mounted on an epoxy-glass laminate substrate, copper-clad on both sides, on which connections with a common anode and separate cathode leads are located. The photosensitive surface of photodiodes is covered with a special silicone gel, which protects photodiodes against the mechanical impact of scintillators
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maciej Węgrzecki, Dariusz Wolski, Jan Bar, Tadeusz Budzyński, Arkadiusz Chłopik, Piotr Grabiec, Helena Kłos, Andrzej Panas, Tadeusz Piotrowski, Wojciech Słysz, Maciej Stolarski, Dariusz Szmigiel, Iwona Węgrzecka, Michał Zaborowski, "64-element photodiode array for scintillation detection of x-rays", Proc. SPIE 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 929104 (19 August 2014); doi: 10.1117/12.2069837; https://doi.org/10.1117/12.2069837
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