Coincidence measurement of 350m pitch pixelated CdZnTe detector with LSO PET module

Yongzhi Yin, Heyu Wu, Sergey Komarov, Alfred Garson, Qingzhen Guo, Henric Krawczynski, Ling Jian Meng, Yuan Chuan Tai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A coincidence detection system between 350m pitch pixelated CZT detector and a LSO-based Inveon PET detector was built up for PET imaging application. Using different trigger mode, we studied how the triggering strategy affects the PET imaging resolution. We obtained 670m at FWHM image resolution for coincidence events detected by CZT central pixel only. If we include coincidence events from CZT double-pixel charge sharing events (while the CZT central pixel still got the biggest signal amplitude), the PET image resolution degrades to 730m FWHM, but the count rate increases 2.5 to 3 times. We estimated the CZT timing property in different coincidence approaches, i.e. triggered by CZT anode signal or LSO signal, based on the electron drift time measurement from one flash ADC system and the measurement of trigger time difference of LSO and CZT signals.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010
Pages3868-3872
Number of pages5
DOIs
StatePublished - Dec 1 2010
Event2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 - Knoxville, TN, United States
Duration: Oct 30 2010Nov 6 2010

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
CountryUnited States
CityKnoxville, TN
Period10/30/1011/6/10

    Fingerprint

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Yin, Y., Wu, H., Komarov, S., Garson, A., Guo, Q., Krawczynski, H., Meng, L. J., & Tai, Y. C. (2010). Coincidence measurement of 350m pitch pixelated CdZnTe detector with LSO PET module. In IEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010 (pp. 3868-3872). [5874538] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2010.5874538