The main kinds, properties and radiation units of measure are considered. The data on the path of the
microparticles in metals and air are presented. The crystal structure of the metals and alkali halides is considered.
The models of various kinds of structural defects (point, linear, volume) in crystal lattice are discussed.
Keywords: Radiation, units of radiation, path of the microparticles, crystal lattice, metals, alkali halide, lattice
defects.
