Performance characteristics of continuous miniature crystal element (cMiCE) detectors

Tao Ling, Kisung Lee, Robert S. Miyaoka

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

Abstract

In this work, we investigate the performance characteristics of our continuous miniature crystal element detector (cMiCE). Versions with a 25 mm by 25 mm by 4 mm thick LSO crystal and with a 50 mm by 50 mm by 8 mm thick LSYO crystal were evaluated. Both detectors utilized a 64-channel flat panel photomultiplier tube (PMT). The intrinsic spatial resolution for the detectors was evaluated using standard Anger positioning and a statistics based positioning (SBP) algorithm. We also examined the effect different reflective materials applied on the entrance surface had on the intrinsic resolution for the 8 mm LYSO crystal. The average energy resolution was 20% for the 4 mm thick LSO crystal and 16% -21% for the 8 mm thick LYSO crystal. The average intrinsic spatial resolution for the 4 mm thick crystal was 1.8 mm full width at half maximum (FWHM) for Anger positioning to within 3 mm of the crystal's edge and 1.14 mm FWHM for SBP to within 2 mm of the edge. The average intrinsic spatial resolution for the 8 mm thick crystal was 2.2 mm FWHM for Anger positioning to within 8 mm of the crystal's edge and 1.3-1.5 mm FWHM (depending on the reflective material used) for SBP to within 2 mm of the edge. Intrinsic spatial resolution is reported without correcting for point source size. The point spot flux had a FWHM of ∼0.52 mm. Using the SBP algorithm showed significant improvement in spatial resolution, linearity of positioning result, and effective field of view for our cMiCE detector.

Original languageEnglish
Title of host publication2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference
Pages1586-1589
Number of pages4
DOIs
Publication statusPublished - 2005 Dec 1
EventNuclear Science Symposium Conference Record, 2005 IEEE - , Puerto Rico
Duration: 2005 Oct 232005 Oct 29

Publication series

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

Other

OtherNuclear Science Symposium Conference Record, 2005 IEEE
CountryPuerto Rico
Period05/10/2305/10/29

ASJC Scopus subject areas

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

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  • Cite this

    Ling, T., Lee, K., & Miyaoka, R. S. (2005). Performance characteristics of continuous miniature crystal element (cMiCE) detectors. In 2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference (pp. 1586-1589). [1596622] (IEEE Nuclear Science Symposium Conference Record; Vol. 3). https://doi.org/10.1109/NSSMIC.2005.1596622