The Different Uses of a Data Acquisition System for Beam Instrumentation in the SPS Complex

A single data acquisition system able to sample and store every 100 ns analog signals coming from different monitors (i.e. SEM or PhotoMultipliers) has been used in the SPS complex for three different instruments: the 'fast spill', allowing the user to observe the intensity evolution of the extracted beams, the 'fast position', giving the beam position evolution of the injected beams and the 'colmon', tracking the beam losses in the SPS ring for LHC collimation studies. This paper presents briefly the hardware and the software shared by these instruments and then describes in more detail the applications and their results