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Proceedings Paper

Progress in BazookaSPECT: high-resolution dynamic scintigraphy with large-area imagers
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Paper Abstract

We present recent progress in BazookaSPECT, a high-resolution, photon-counting gamma-ray detector. It is a new class of scintillation detector that combines columnar scintillators, image intensifiers, and CCD (charge- coupled device) or CMOS (complementary metal-oxide semiconductors) sensors for high-resolution imaging. A key feature of the BazookaSPECT paradigm is the capability to easily design custom detectors in terms of the desired intrinsic detector resolution and event detection rate. This capability is possible because scintillation light is optically amplfied by the image intensifier prior to being imaging onto the CCD/CMOS sensor, thereby allowing practically any consumer-grade CCD/CMOS sensor to be used for gamma-ray imaging. Recent efforts have been made to increase the detector area by incorporating fiber-optic tapers between the scintillator and image intensi_er, resulting in a 16x increase in detector area. These large-area BazookaSPECT detectors can be used for full-body imaging and we present preliminary results of their use as dynamic scintigraphy imagers for mice and rats. Also, we discuss ongoing and future developments in BazookaSPECT and the improved event- detection rate capability that is achieved using Graphics Processing Units (GPUs), multi-core processors, and new high-speed, USB 3.0 CMOS cameras.

Paper Details

Date Published: 17 October 2012
PDF: 14 pages
Proc. SPIE 8508, Medical Applications of Radiation Detectors II, 85080F (17 October 2012);
Show Author Affiliations
Brian W. Miller, Radiation Detection and Nuclear Sciences Group (United States)
H. Bradford Barber, The Univ. of Arizona (United States)
Harrison H. Barrett, The Univ. of Arizona (United States)
Zhonglin Liu, The Univ. of Arizona (United States)
Vivek V. Nagarkar, Radiation Monitoring Devices, Inc. (United States)
Lars R. Furenlid, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 8508:
Medical Applications of Radiation Detectors II
H. Bradford Barber; Hans Roehrig, Editor(s)

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