Translator Disclaimer
18 March 2008 An investigation of digital signal processing for shaped pulses for all-digital PET
Author Affiliations +
Abstract
We present our work toward implementing all-digital signal processing for Positron Emission Tomography (PET) event detection. In the conventional PET system, proper calibration and extending event processing are challenging tasks due to the huge number of channels and multiplexing of input signals in the mixed-signal front-end. To alleviate such limitations, we have proposed a simple all-digital PET system utilizing digital signal processing (DSP) technologies for analyzing event pulses generated in PET. In this work, we implement a Gaussian shaper circuit for scintillation pulses, which followed by a moderate sampling rate Analog-to-Digital Converter (ADC). We also evaluate two DSP algorithms for extracting time information from the digitized pulse samples, and the two algorithms examined could generate a coincidence timing resolution of ~ 2.4ns FWHM, by using a 125MSps sampling rate ADC.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Qingguo Xie, Jun Zhu, Xi Wang, Bo Zhang, Caigang Zhu, Ning Guo, Zhi Zhang, Chin-Tu Chen, Yau W. Wah, Mircea Bogdan, and Chien-Min Kao "An investigation of digital signal processing for shaped pulses for all-digital PET", Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69134B (18 March 2008); https://doi.org/10.1117/12.769704
PROCEEDINGS
7 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top