Speaker
Description
Moving from extracting one single energy per cycle to multiple energies promises improvements in time and power budgets of medical synchrotrons. To ensure reproducible and accurate beams for treatment, hysteresis effects must be considered. To avoid losses during energy changes, the beam has to be moved away from the extraction resonance. Four different methods of moving the working point were compared regarding their robustness, adaptability and speed by means of measurements and Xsuite simulations. The measurements were taken at the synchrotron facility MedAustron. The four methods are devised for the PIMMS based lattice with one resonant sextupole and off-momentum operation, and differ in how the working point is shifted during the energy change regarding the timing of element ramps and off-momentum contributions.
Funding Agency
Austrian Ministry of Education, Science, and Research
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