Jean Boillot Bio. Jean Boillot joined CERN (Geneva) in 1972 after working during 3 years in Paris in an aerospace laboratory. Engineer in electronics from Lyon (France), he holds a doctorate in Applied Physics from Paris University. He is a member of the Operations Group of the CERN PS Division for 25 years. He participated in several projects in various domains : construction of beam lines, beam diagnostics, general sequencing and timing of the CERN accelerators, running of the PS Complex in multi-user mode, operational aspects and specifications for the accelerator control system. Since 1989, he is the Head of the Operations Group. He is in charge of the scheduling of the machines in coordination with the physicists and of the follow-up of the beam performance and of the reliability of the machines.