Here are some books that you may find useful during your studies. Search the Bennies catalogue Oliver for more, or browse the Non-fiction collection NFS.
Health Physics by 
History and physics of the CT scanner
A basic description of the mechanism of CT (computed tomography) scans for medical use in remote sensing.
Computed tomography (CT) scanning, also known as computerised axial tomography (CAT) scanning, is a diagnostic imaging procedure that uses X-rays in order to present cross-sectional images ("slices") of the body. Cross sections are reconstructed from the measurements of attenuation coefficients of X-ray beams in the volume of the object studied.
This article provides a review of the basic principles of CT within the context of the evolution of CT. Modern CT technology can be understood as a natural progression of improvements and innovations in response to both engineering problems and clinical requirements. Detailed discussions of multislice CT, CT image quality evaluation, and radiation doses in CT will be presented in upcoming articles in this series.