Acta Photonica Sinica, Volume. 46, Issue 3, 304002(2017)
Extraction of the Depth-of-interaction for PET Detectors Based on a Serpentine-light-path Design
To obtain the Depth Of Interaction (DOI) information for Positron Emission Tomography (PET), we proposed a novel detector design based on the light sharing technique. The detector used scintillators and silicon photomultipliers (SiPMs) with one to one coupling, employed the serpentine-light-path reflector scheme and the single-end Anger logic readout technique. Monte Carlo simulations were carried out to verify the design via GATE toolkit. An 8×1 LSO array with a crystal size of 3.1×3.1×20 mm3 was built. A flood source for generating position look-up table and five beam sources irradiating at different depths of the crystals were simulated and then calculated. The result shows that the average DOI resolution is 3.2 mm (ranging from 1 to 7 mm). In conclusion, we propose a novel detector design based on a serpentine-light-path scheme to realize DOI decoding which is a low-cost and practical direction for clinical PET systems.
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WEI Qing-yang, DAI Tian-tian, GU Yu, LI Xiang-dong. Extraction of the Depth-of-interaction for PET Detectors Based on a Serpentine-light-path Design[J]. Acta Photonica Sinica, 2017, 46(3): 304002
Received: Dec. 25, 2016
Accepted: --
Published Online: Apr. 10, 2017
The Author Email: Qing-yang WEI (weiqy@ustb.edu.cn)