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Mezger, A.C.

Paper Title Page
TUO1A04 Control and Protection Aspects of the Megawatt Proton Accelerator at PSI 281
 
  • A.C. Mezger, M. Seidel
    PSI, Villigen
 
 

At the PSI a high intensity proton accelerator complex is routinely operated with a final energy of 590 MeV and with a beam current of 2.2 mA. In the future the beam current will be increased to 3 mA, then carrying a beam power of 1.8 MW. Operating a facility at such a high beam power needs not only a performing and fast protection mechanism against failures but also protection against activation of the facility. This presents a challenge for the beam diagnostics since a high dynamic range of currents is handled. Furthermore several tools, control loops and procedures which are of utmost importance for minimizing the ever present losses in the facility will be presented together with the machine protection system. A new challenge for our facility is the new ultra cold neutron (UCN) facility, coming into operation this year and requiring the switch over from one beam line to another for a duration of 8 sec with the full beam power. Using a short pilot pulse of a few ms the beam position is measured and the beam centered in preparation of the long pulse. We will show the diagnostics that are involved and how we overcome the constraints given by the machine protection system.

 

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Slides

 
FROP04 Summary of the Commissioning, Operations and Performance Working Group of the HB-2010 Workshop 703
 
  • J. Galambos
    ORNL, Oak Ridge, Tennessee
  • H. Hotchi
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • A.C. Mezger
    PSI, Villigen
 
 

As hadron machines approach higher beam intensity and operational power levels, issues such as machine activation caused by beam loss, machine protection and machine availability become more critical concerns. The operational experience of the high power, high intensity facilities in these areas is compared.

 

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Slides