Nuclear Medical Imaging Systems

Slides on radio isotopes, used for both diagnosis and therapy, where a small amount of radioactivity is introduced into the body and traced from outside. The curie is defined as 3.7 by ten to the tenth disintegrations per second, and organ scanning typically uses three to twenty-five millicuries. Covers radiation detection and the pulse height analyser, since the radioactive pulses arrive as single electrical impulses and the height of the impulse tells you the energy of the particle that produced it, the scintillation crystal coupled to photomultipliers, and the multicrystal gamma camera, which overcomes the losses of a single crystal by using a rectangular array of crystals with reflective material to minimise scattering.