Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8208976 | Applied Radiation and Isotopes | 2016 | 5 Pages |
Abstract
A point source is used to investigate the effect of water phantom thickness and source-to-detector distance (SDD) on the sensitivity and counting efficiency of a rectangular detector gamma camera. The increase in water thickness resulted in an increase in scatter fraction, a decrease in sensitivity, and counting efficiency. The increase in SDD resulted in a decrease in sensitivity and an increase in counting efficiency. An SDD of 0.79±0.02 m is found to provide a good compromise for acceptable sensitivity and reasonable counting efficiency.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Mohamed A. Ghoneim, M.H. Khedr, Wael M. Elshemey,