High-quality image is necessary for accurate diagnosis in nuclear medicine. There
are many factors in creating a good image and detector is the most important one.
In recent years, several detectors are studied to get a better picture. The aim of
this paper is comparison of some type of these detectors such as thallium activated
sodium iodide bismuth germinate cesium activated yttrium aluminum garnet (YAG: Ce)
YAP: Ce "lutetium aluminum garnet activated by cerium" CRY018 "CRY019" lanthanum bromide
and cadmium zinc telluride. We studied different properties of these crystals including
density, energy resolution and decay times that are more important factors affecting
the image quality.
Keywords
Decay time - density - detector - energy resolution - fwhm - image quality - single
photon emission computed tomography - the after glow
