Fabbricatore, P.

Paper	Title	Page
TUPP111	Magnetic Design Improvement and Construction of the Large 90o Bending Magnet of the Vertical Beam Delivery Line of CNAO	1782
	W. Beeckman, S. Antoine, F. Forest, J. L. Lancelot, M. J. Leray, T. Planche Sigmaphi, Vannes P. Fabbricatore INFN Genova, Genova C. Priano, M. Pullia CNAO Foundation, Milan
	The CNAO (Centro Nazionale di Adroterapia Oncologica) is the medical center dedicated to the cancer therapy, under construction in Italy. Protons with energy ranging from 60 to 250 MeV and carbon ions with energy 120 to 400 MeV/u will be delivered to patients in three different treatment rooms, of which one is served with both horizontal and vertical beams. The vertical line requires a 70 tons 90o bending magnet providing 1.81 T in a good field region of x = ± 100 by y = ± 100 mm2 with an integrated field quality (ΔBL/BL) at all field levels ≤ ± 2×10-4. Starting from the experience matured when constructing the large bending magnet for HICAT gantry, we have developed a design able to meet these more stringent requirements in both 2D and 3D and special attention was paid to the study of manufacturing tolerances
WEOBM01	R&D Activities Aimed at Developing a Curved Fast Ramped Superconducting Dipole for FAIR SIS300	1950
	P. Fabbricatore, S. Farinon, R. Musenich INFN Genova, Genova F. Alessandria, G. Bellomo, G. Volpini INFN/LASA, Segrate (MI) U. Gambardella INFN/LNF, Frascati (Roma) J. E. Kaugerts, G. Moritz GSI, Darmstadt R. Marabotto ASG, Genova M. Sorbi Universita' degli Studi di Milano & INFN, Segrate
	One of the basic components of the FAIR facility, under development at GSI, is the synchrotron SIS300 (300 Tm rigidity). In order to reach the required high intensities of proton and heavy ion beams, the magnets of this synchrotron have to be pulsed from the injection magnetic field of 1.5 T up to 4.5 T maximum field at the rate of 1 T/s. These 7.8 m long, cos-teta shaped coils with a 100 mm bore have the particular characteristic to be curved (the sagitta is 114 mm). All these aspects demand for a challenging R&D, aimed at the development of a low loss conductor and of a suitable winding technology for curved coil. Further design issues are related to the optimization of the stress distribution involving materials able to hold 107 cycles and to the maximization of the heat transfer to coolant (supercritical helium at 4.7 K). At the present time, design activities are going on with the aim to design, construct and test a 3.8 m long prototype within 2009. In order to achieve this objective, several intermediate milestones are included in the R&D program. One of the most challenging is the industrial development of a method for winding a curved cos-teta dipole.
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