TY - JOUR
T1 - A multi-functional front end readout electronics system for PET detector application
AU - Hu, K.
AU - Cheng, X.
AU - Shao, Y.
AU - Yuan, L.
N1 - Publisher Copyright:
© 2021 IOP Publishing Ltd and Sissa Medialab.
PY - 2021/8
Y1 - 2021/8
N2 - A compact, 96-ch, multi-functional and practical front-end readout electronics system for a SiPM based PET detector is developed. This electronics system is based on the latest Sigma Delta Modulation (SDM) circuit, which implements a charge-to-digital conversion (QDC) that keeps energy, timing information. In order to achieve a compact size, the system has a stacked structure including two kinds of boards, analog board and digital board. The analog board is responsible for charge integration of SDM while the digital board is for discharging feedback of the SDM circuit. Also, the digital board is applied for energy calculation, timing pickoff and data buffering and transferring. In comparison to the initial version of the SDM QDC, the input signal polarity on the electronics system is improved from negative only to both positive and negative polarities so that it can process both SiPM anode and cathode signals. Several SiPM based PET detectors are applied to validate the capability of dual polarity readout and multi-functionality. Overall, the prototype electronics system demonstrated its good performance for PET application.
AB - A compact, 96-ch, multi-functional and practical front-end readout electronics system for a SiPM based PET detector is developed. This electronics system is based on the latest Sigma Delta Modulation (SDM) circuit, which implements a charge-to-digital conversion (QDC) that keeps energy, timing information. In order to achieve a compact size, the system has a stacked structure including two kinds of boards, analog board and digital board. The analog board is responsible for charge integration of SDM while the digital board is for discharging feedback of the SDM circuit. Also, the digital board is applied for energy calculation, timing pickoff and data buffering and transferring. In comparison to the initial version of the SDM QDC, the input signal polarity on the electronics system is improved from negative only to both positive and negative polarities so that it can process both SiPM anode and cathode signals. Several SiPM based PET detectors are applied to validate the capability of dual polarity readout and multi-functionality. Overall, the prototype electronics system demonstrated its good performance for PET application.
KW - Data acquisition circuits
KW - Digital electronic circuits
KW - Front-end electronics for detector readout
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U2 - 10.1088/1748-0221/16/08/P08051
DO - 10.1088/1748-0221/16/08/P08051
M3 - Article
AN - SCOPUS:85114314857
SN - 1748-0221
VL - 16
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 8
M1 - P08051
ER -