Electronics is the most important tool in nuclear radiation metrology. Without electronic instruments most of the problems concerned with measurement in pure or applied nuclear research, radiation protection or the use of radioactive isotopes in industrial process control would remain unsolved. Conversely, the radiation metrology was one of the first areas, if not the first, outside communications in which electronic devices were successfully employed. The quantum nature of nuclear radiations deter mined the need to work with pulse-type signals and thus contributed substantially to the...