Development of a Safety Classified SystemWith LabView and EPICS

THCPA04, Poster SessionInternational audienceThe Spiral2 linear accelerator will drive high intensity beams, up to 5 mA and 200kW at linac exit. In tuning phase, or when not used by the experimental areas, thebeam will be stopped in a dedicated beam dump. To avoid excessive activation ofthis beamdump, in order to allow human intervention, a safety classified systemhad been designed to integrate the number of particles dropped in it within each24 hours time frame. For each kind of beam, a threshold will be defined andas soon as the threshold is reached a beam cut-off will be sent to the machineprotection system. This system, called SLAAF: System for the Limitation of theActivation of the beam dump (Arret Faisceau in French) rely on LabView andEPICS (Experimental Physics and Industrial Control) technology. This paper willdescribe the specification and development processes and how we dealt to meetboth functional and safety requirements using two technologies not commonlyused for safety classified systems