NDLI: Studies of a solid detector array for high energy X-ray imaging system based on MA-PMT

Content Provider	IEEE Xplore Digital Library
Author	Yulan Li Yuanjing Li Libai Xu Shaofeng Wang Liangjun Cao
Copyright Year	2005
Description	Author affiliation: Dept. of Eng. Phys., Tsinghua Univ., Beijing (Yulan Li; Yuanjing Li; Libai Xu)
Abstract	This paper evaluated the possibility of using H65658(-10), a 4times4 multi-anode PMT (MA-PMT) assembly from Hamamatsu, to develop a solid state detector array for high energy X-ray imaging system. The whole detector system is assembled by several dozens of 32-channel detector modules, while each channel is consist of a $CdWO_{4}$ crystal read-out by a MA-PMT channel through a bunch of optical fiber. In the module, discrete $CdWO_{4}$ crystals and Mo spacers are arranged alternatively in a linear array and coupled to two H6568(-10) PMTs. Our studies have shown that most of PMT's specifications like noise, gain uniformity, crosstalk meet the system's requirements. But their linear ranges, which were limited by its saturation, are not wide enough for the imaging system which was originally proposed for solid detectors readout by photodiodes. And there is some potential to improve the detector's performance, like widen the linear range of the MA-PMT, extend the dynamic range of the imaging system beyond its linear range. We can also expect an improvement to the imaging system by reducing the X-ray source intensity, and get the benefit of easier radiation protection and eventually lower system cost
Starting Page	725
Ending Page	728
File Size	357523
Page Count	4
File Format	PDF
ISBN	0780392213
ISSN	10957863
DOI	10.1109/NSSMIC.2005.1596360
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-23
Publisher Place	Puerto Rico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	X-ray detection X-ray detectors Sensor arrays X-ray imaging Optical imaging Assembly systems Crosstalk Solid state circuits Optical fibers Crystals
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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