  Computed tomography (CT) has become a vital tool in a variety of fields as a
result of technological developments and continual improvement. High-quality CT
images are desirable for image interpretation and obtaining information from CT
images. A variety of things influence the CT image quality. Various research
groups have investigated and attempted to improve image quality by examining
noise/error associated with CT geometry. This study aims to select detectors
for CT, which yield the least amount of noise in projection data. Three
distinct gamma-ray detectors that are routinely used in CT have been compared
in terms of scattering and electrical noise. The sensitivity of Kanpur
Theorem-1 to scattering noise is demonstrated in this work and used to quantify
the relative level of scattering noise. The detector measures the signal
multiple times, and the standard deviation of the signal is used to calculate
the electronic noise. It is observed that IC CsI(Tl) scintillation detector
produces low electronic noise and relative scattering noise as compared to
conventional electronic detectors; NaI(Tl) and HPGe.
