Manufacturing of linac control system for Hokkaido University

At present Hokkaido University is planning renewal of electron linear accelerator facility after more than 40 years have passed since its establishment. In this renewal plan, we delivered one S-band standing wave accelerating structure with electron gun as an injector in FY2015, and one S-band traveling wave type 3 m length accelerating structure for accelerating section and a PLC-based accelerator control system, which can control and monitor the condition of the accelerator in FY2016. This accelerator control system is based on the application of the accelerator control technology of the sterilization system by electron beam irradiation, which was handled by the Mitsubishi Heavy Industries Group as one of the applications of electron linac to the industrial. We completed delivery of this system in December 2016. In the near future, installation and combined operation test with modulators etc., are planned at the timing of updating the electron linac of Hokkaido University. (author)