NDLI: A high resolution and high sensitivity small animal SPECT system based on H8500

Content Provider	IEEE Xplore Digital Library
Author	Xishan Sun Shi Wang Tianyu Ma Rong Zhou Xin Li Zhang, Z. Yaqiang Liu Zhaoxia Wu Yongjie Jin
Copyright Year	2007
Description	Author affiliation: Tsinghua Univ., Beijing (Xishan Sun; Shi Wang; Tianyu Ma; Rong Zhou; Xin Li; Zhang, Z.; Yaqiang Liu; Zhaoxia Wu; Yongjie Jin)
Abstract	A compact multi-detector SPECT system for small animal (MicroSPECT) has been developed. The detector of MicroSPECT system is composed of a NaI scintillation crystal array and four H8500 flat panel position sensitive photon multiplier tubes(PS-PMT). The pixel size of the scintillation crystal array is 1.45 mmtimes1.45 mm and the total detection area is 103.75 mmtimes103.75 mm with 61times61 pixels. Four H8500 PS-PMTs are jointed together, coupling with the scintillation crystal array. Single pinhole and multi-pinhole collimators are used and special designed to satisfy the need of high spacial resolution or high sensitivity respectively. The DETECT2000 & MCNP Monte Carlo simulation programs were used for verifying the MicroSPECT system detector and pinhole collimator design. A high speed readout circuit was developed for the detectors. Each detector can achieve the counting rate at 300 k/s. The results show that the scintillation crystal array has an effective area of 55times55 pixels and that the joint parts of the PS-PMTs are still available for detection. We aim that the MicroSPECT system can achieve 1 mm spatial resolution or better.
Starting Page	2941
Ending Page	2943
File Size	427127
Page Count	3
File Format	PDF
ISBN	9781424409228
ISSN	10957863
DOI	10.1109/NSSMIC.2007.4436750
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Animals Solid scintillation detectors Collimators Photonic crystals Sensor arrays High-resolution imaging Single photon emission computed tomography Nuclear and plasma sciences Sun Physics
Content Type	Text
Resource Type	Article

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