Some Applications of Solid State Image Converters (SSIC)

Abstract

This chapter discusses some of the applications of solid-state image converters (SSIC). The SSIC offers a number of applications in image conversion, amplification, and storage. The first practical application has been to X-ray images in the fields of medicine and nondestructive testing. High energy X-rays in the MeV range are needed especially in the X-ray therapy of cancer. The intensity of scattered radiation, however, is so high that it is not safe to enter the room where the patient is located for beam control and alignment. Hence it is necessary to take an X-ray photograph or to use a closed-circuit television system. With an SSIC however, one can make a short exposure and, owing to the long persistence of the picture, then enter the room for inspection. Another application of SSIC is to air traffic control. SSIC can easily be regulated by means of a simple power supply, and the gamma can be changed simply by changing the voltage or the frequency. For special applications the high gamma value is of great advantage; for storage purposes the long persistence is very useful.