ABSTRACT
This chapter provides an overview of the technologies used for high-speed tomographic imaging. Development of high-speed computed tomography (CT) began with conventional systems, as used in medical, industrial, and laboratory imaging. The main factor limiting the speed of conventional single-source medical CT systems is the physical rotation of the source and detector array. Medical CT systems have found use in scanning static objects outside medical applications; for example, in airport baggage and other security inspection applications, systems similar to conventional medical CT have been used for three-dimensional scanning of potential threat items. In non-destructive testing and laboratory CT, typical systems comprise a fixed source and a detector in a vertical plane that is either fixed or can be set at a fixed distance from the source. This is either a flat-panel rectangular detector or a system involving a flat scintillator and an optical camera providing a range of zo.
