Author: Baumgarten, C.
Paper Title Page
TUPMR019 Measurements of the Beam Phase Response to Correcting Magnetic Fields in PSI Cyclotrons 1271
  • A.S. Parfenova, C. Baumgarten, J.M. Humbel, A.C. Mezger
    PSI, Villigen PSI, Switzerland
  • A.V. Petrenko
    CERN, Geneva, Switzerland
  The cyclotron-based proton accelerator facility (HIPA) at PSI is presently operated at 1.3-1.4 MW beam power at a kinetic energy of 590 MeV/u to drive the neutron spallation source SINQ and for production of pion and muon beams. Over the years HIPA facility has developed towards increase of the delivered beam current and beam power (0.1 mA in 1974 till 2.2 mA in 2010). During the last few years several upgrades of the Ring cyclotron field correction and beam phase monitoring systems were made. RF voltage was also increased. In order to test the performance of the upgraded system the phase response measurements were carried out.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMR019  
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TUPOY014 PSI Gantry 3: Integration of a New Gantry into an Existing Proton Therapy Facility 1927
  • A. Koschik, C. Baumgarten, C. Bula, J.P. Duppich, A. Gerbershagen, M. Grossmann, V. Rizzoglio, J. Welte
    PSI, Villigen PSI, Switzerland
  Paul Scherrer Institute extends its proton therapy facility PROSCAN by a third gantry. It is delivered by Varian Medical Systems (VMS) as part of a joint research project. Gantry 3 is equipped with a cone beam CT and allows 360 degrees of rotation while occupying a 10.5 m diameter. The integration of a gantry into the existing PSI-system typically being designed for a complete Varian system is a challenging project, since also the certification is to be maintained. Especially the interfaces between the PROSCAN-control system and the one of Gantry 3 have been a major development. Gantry 3 is designed to deliver proton beam of up to 8 nA with an accuracy better than a mm, while having a high level of over-current protection. This comprises a new current monitoring unit, several levels of interlock controllers and a beam energy dependent intensity compensation concept. One challenge concerns the specified layer switching time of 200 ms, required to reduce the treatment time to enable for repainting. After technical commissioning, acceptance tests and hand over, the clinical commissioning is foreseen in the second half of 2016 with the first patient treatment in December 2016.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOY014  
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