| Paper |
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| WEPLS128 |
The Italian Hadrontherapy Center (CNAO): A Review of the Power Supply System for Conventional Magnets
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2676 |
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- M. Incurvati, C. Sanelli
INFN/LNF, Frascati (Roma)
- L. Balbo, N. Balbo, A. Tescari
EEI, Vicenza
- F. Burini, S. Carrozza, M. Cavazza, M.F. Farioli, S. Minisgallo, M.P.C. Pretelli, G. Taddia
O.C.E.M. S.p.A., Bologna
- I. De Cesaris
CNAO Foundation, Milan
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A hadron (Carbon/Proton) medical centre based on a synchrotron accelerator dedicated to the cure of deep tumours is under construction in Pavia (Italy) under the joint responsibility of CNAO (Centro Nazionale di Adroterapia Oncologica) and INFN (Istituto Nazionale di Fisica Nucleare). This paper describes the power supply system, made up of about 200 units designed by LNF, and whose converters for the synchrotron ring and related low, medium and high energy transfer lines are now under construction by the major Italian companies. The power supplies requirements and electrical characteristics will be reported describing the most interesting topologies that fulfill the requested performances together with the main features of each power supply topology. Synchrotron dipoles, quadrupoles, sextupoles and resonance sextupole power supplies have tight characteristics with respect to precision class (current resolution, residual ripple, short-long term stability, etc.) that range from 5 ppm to 500 ppm, fast dynamical response with bandwidth up to some hundreds hertz, high power from tens of kW to many MW and output current ranging from hundreds of A to 3 kA.
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