title: Fast triggers for a proton injector at PEFP.
abstract: A fast timing system has been developed to control transistor transistor logic (TTL) trigger signals which are used to extract the pulsed proton beam from an ion source with the precision of less than submicro seconds. The system has been designed to set a delay and duty of the pulses, respectively, and prohibit the beam pulse by an external interlock signal. The system is based on VME which is composed of VME CPU and fast I/O boards with fan-out modules. The software of the system has been developed by the record/device supports and channel access in the core of the EPICS environments. In the paper, we describe software configurations and hardware drivers.
authors.affiliation: Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Yuseong, Daejeon, Republic of Korea. ygsong@kaeri.re.kr
authors.forename: Young-Gi
authors.initials: YG
authors.lastname: Song
authors.forename: In-Seok
authors.initials: IS
authors.lastname: Hong
authors.forename: Yong-Sub
authors.initials: YS
authors.lastname: Cho
authors.forename: Yong-Hwan
authors.initials: YH
authors.lastname: Cho