A waveform sampling front-end ASIC for readout of GSO/APD with DOI information

被引:7
|
作者
Yeom, J. Y.
Shimazoe, K.
Takahashi, H.
Murayama, H.
机构
[1] Univ Tokyo, Dept Quantum Engn & Syst Sci, Bunkyo Ku, Tokyo 1138656, Japan
[2] Univ Tokyo, Fac Engn, Bunkyo Ku, Tokyo 1138656, Japan
[3] Natl Inst Radiol Sci, Dept Med Phys, Inage Ku, Chiba 2638555, Japan
关键词
Positron Emission Tomography (PET); ASIC; Avalanche Photodiode (APD); depth-of-interaction (DOI);
D O I
10.1016/j.nima.2006.10.114
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new 9-channel Waveform Sampling Front-End (WSFE) Application Specific Integrated Circuit (ASIC) for readout of avalanche photodiodes (APD) has been developed based on two prototypes. Each channel of the chip consists of a preamplifier, a variable gain amplifier (VGA) and a fast analog to digital converter (ADC) to digitize signals from the APD. Such a scheme allows individual readouts of small pixellated APD for better spatial resolution and counting rate over conventional light sharing or charge division types while enabling depth-of-interaction (DOI) decoding. Each component has shown satisfactory performance and this chip has been used to readout GSO-APD detector to study its DOI capabilities. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:381 / 384
页数:4
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