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Title
Japanese: 
English:Development of a low-noise analog front-end ASIC for APD-PET detectors 
Author
Japanese: Koizumi, M., 片岡 淳, Tanaka, S., Ishibashi, H., 河合 誠之, Ikeda, H., Ishikawa, Y., Kawabata, N., Matsunaga, Y., Shimizu, K., Kubo, H. ..  
English: Koizumi, M., Kataoka, J., Tanaka, S., Ishibashi, H., Kawai, N., Ikeda, H., Ishikawa, Y., Kawabata, N., Matsunaga, Y., Shimizu, K., Kubo, H. ..  
Language English 
Journal/Book name
Japanese: 
English:Nuclear Instruments and Methods in Physics Research A 
Volume, Number, Page Vol. 604        pp. 327-330
Published date June 2009 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1016/j.nima.2009.01.104
Abstract We report on the development of a front-end ASIC for high spatial resolution PET detectors with time-of-flight capability based on LYSO scintillator arrays coupled with position-sensitive avalanche photodiode (APD) arrays. The ASIC is designed based on the open-IP LSI project led by JAXA and realized in TSMC 0.35-μm CMOS technology. It consists of an 8-channel charge-sensitive amplifier, band-pass filters, differentiators, pulse-height and timing discriminators, and two-channel time-to-amplitude converters. As a result, energy resolution of 9.7% (FWHM) is obtained at 511 keV, with a time resolution below 970 ps (σ). We will also report on the current status of developing a second-version ASIC designed to have 32-channel analog circuits with improved time resolution.

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