Development of a low-noise analog front-end ASIC for APD-PET detectors

被引：9
|
作者：
Koizumi, M. [1 ]
Kataoka, J. [1 ]
Tanaka, S. [1 ]
Ishibashi, H. [1 ]
Kawai, N. [1 ]
Ikeda, H. [2 ]
Ishikawa, Y. [3 ]
Kawabata, N. [3 ]
Matsunaga, Y. [3 ]
Shimizu, K. [4 ]
Kubo, H. [5 ]
机构：
[1] Tokyo Inst Technol, Meguro Ku, Tokyo 1528551, Japan
[2] Inst Space & Astronaut Sci, JAXA, Kanagawa 229, Japan
[3] Hamamatsu Photon KK, Div Solid State, Shizuoka, Japan
[4] Hamamatsu Photon KK, Cent Res Lab, Shizuoka, Japan
[5] Kyoto Univ, Dept Phys, Sakyo Ku, Kyoto 606, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 604卷 / 1-2期
关键词：
Avalanche photodiode; gamma-Rays; Positron emission tomography (PET); ASIC; Open-IP; AVALANCHE PHOTODIODES;
D O I：
10.1016/j.nima.2009.01.104
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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-mu m 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 (sigma). 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. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：327 / 330
页数：4
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