Feasibility study of using two 3-D position sensitive CZT detectors for small animal PET

Feng Zhang, Zhong He, D. Xu, Ling Jian Meng

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

Abstract

An experimental small animal PET using two 3-D position sensitive CdZnTe detectors was developed and tested. Each 1.5×1.5×1 cm3 CdZnTe detector employs 11 by 11 pixellated anodes wire-bonded to the VAS3.1/TAT3/MCR3 readout electronics. Each detector can obtain the deposited energy and 3-D coordinates for single-pixel and multiple-pixel events. Both systems achieved energy resolutions of better than 1.0% FWHM at 662 keV for single-pixel events and better than 1.5% FWHM at 662 keV for two-pixel events. The position resolution of each detector was estimated to be ∼1.3×1.3×0.5 mm3. Modifications to the firmware of the readout board and additions of custom-built circuitry enabled coincidence measurement between two 3-D CdZnTe detector systems using VAS3.1/TAT3/MCR3 readout systems. Spatial resolution Improvements by using depth of Interaction (DOI) and by Identifying the first Interaction using Compton scattering angle reconstruction are reported and discussed.

Original languageEnglish (US)
Title of host publication2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference
Pages1582-1585
Number of pages4
DOIs
StatePublished - Dec 1 2005
Externally publishedYes
EventNuclear Science Symposium Conference Record, 2005 IEEE - , Puerto Rico
Duration: Oct 23 2005Oct 29 2005

Publication series

NameIEEE Nuclear Science Symposium Conference Record
Volume3
ISSN (Print)1095-7863

Other

OtherNuclear Science Symposium Conference Record, 2005 IEEE
CountryPuerto Rico
Period10/23/0510/29/05

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

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  • Cite this

    Zhang, F., He, Z., Xu, D., & Meng, L. J. (2005). Feasibility study of using two 3-D position sensitive CZT detectors for small animal PET. In 2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference (pp. 1582-1585). [1596621] (IEEE Nuclear Science Symposium Conference Record; Vol. 3). https://doi.org/10.1109/NSSMIC.2005.1596621