Abstract:
The purpose of the Nuclear Medicine Imaging procedure IS to!provide
visual information, both anatomical and functional, about difterent organs The
mformation quality is dIrectly related to the perfonnance characterIStIcs of
different parameters of the imagmg system itself. The aim of thc present work
\'•.as to study a few of these performance parameters that affect the image
forming process of Gamma Camcra. Spatial Resolution, Energy Resolution and
Effect of Count Density wcre considered as the most int1l1enlialparameter In
I
producing hIgh quality images. A Total Performance Phantom was fapricated
locally for evaluatmg the performance parameter~of the Gamma Camera. This
phantom costs comparatively much less, but can provide comparable rcsults
which can be used to check the Gamma Camera performance with reasonable
accuracy. Experiments were pcrformed using a Medx-LF-61 Anger Camera and
the phantom following the relevant recommendations made in IAEA TECDOC-
602. The Energy Resolution and Spatial Resolution wcre calculated from the
experiments and thc effect of the Count Density WIthActivity, WindoIv v.,'idth
and Source to Collimator distance was studied from the Images. The results have
been compared wah standard values,
