Digitally Controlled Fast Logic Modules

Fast logic circuits with the repetition rate of 200 MHz and the time resolution of 10-9 s have been digitized using the CAMAC interface. Some results of a project of the fast coincidence system connected to the CAMAC autonomous control system are presented. In the sysgte the operating mode of the coincidence unit and the inherent delay of the logic channels can be set automatically and the stability of the system can be controlled during the experiment. The Digital Coincidence Unit and the Digital Delay are described. The fast coincidence system presented in this paper is intended for particle beam identification and triggering of the set of counter hodoscopes in high energy physics experiments.