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Proceedings Paper

64-element photodiode array for scintillation detection of x-rays
Author(s): 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
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Paper 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

Paper Details

Date Published: 19 August 2014
PDF: 5 pages
Proc. SPIE 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 929104 (19 August 2014); doi: 10.1117/12.2069837
Show Author Affiliations
Maciej Węgrzecki, Institute of Electron Technology (Poland)
Dariusz Wolski, National Ctr. for Nuclear Research (Poland)
Jan Bar, Institute of Electron Technology (Poland)
Tadeusz Budzyński, Institute of Electron Technology (Poland)
Arkadiusz Chłopik, National Ctr. for Nuclear Research (Poland)
Piotr Grabiec, Institute of Electron Technology (Poland)
Helena Kłos, Institute of Electron Technology (Poland)
Andrzej Panas, Institute of Electron Technology (Poland)
Tadeusz Piotrowski, Institute of Electron Technology (Poland)
Wojciech Słysz, Institute of Electron Technology (Poland)
Maciej Stolarski, Institute of Electron Technology (Poland)
Dariusz Szmigiel, Institute of Electron Technology (Poland)
Iwona Węgrzecka, Institute of Electron Technology (Poland)
Michał Zaborowski, Institute of Electron Technology (Poland)


Published in SPIE Proceedings Vol. 9291:
13th International Scientific Conference on Optical Sensors and Electronic Sensors
Jacek Golebiowski; Roman Gozdur, Editor(s)

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