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A comparison of CsI:Tl and GOS in a scintillator-CCD detector for nuclear medicine imaging

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posted on 21.11.2016, 10:11 by S. L. Bugby, L. K. Jambi, J. E. Lees
A number of portable gamma cameras for medical imaging use scintillator-CCD based detectors. This paper compares the performance of a scintillator-CCD based portable gamma camera with either a columnar CsI:Tl or a pixelated GOS scintillator installed. The CsI:Tl scintillator has a sensitivity of 40% at 140.5 keV compared to 54% with the GOS scintillator. The intrinsic spatial resolution of the pixelated GOS detector was 1.09 mm, over 4 times poorer than for CsI:Tl. Count rate capability was also found to be significantly lower when the GOS scintillator was used. The uniformity was comparable for both scintillators.

Funding

The authors would like to thank Toshiba Materials Co. Ltd for providing the GOS scintillator sample investigated in this paper. The authors also would like to thank Sharon McMahon, Nicola Murphy, Chris Hastings and Debbie Peet, Leicester Royal Infirmary and Jane L MacArthur, Bahadar S Bhatia, Mohammed S Alqahtani and William R McKnight, University of Leicester for their technical support. L.K. Jambi is financially supported by King Saud University, Ministry of Education, Kingdom of Saudi Arabia. This work is supported by an STFC CLASP grant (ST/M007820/1).

History

Citation

Journal of Instrumentation, 2016, 11 P09009

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Version

VoR (Version of Record)

Published in

Journal of Instrumentation

Publisher

IOP Publishing

eissn

1748-0221

Acceptance date

15/09/2016

Available date

21/11/2016

Publisher version

http://iopscience.iop.org/article/10.1088/1748-0221/11/09/P09009/meta

Language

en

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