Pullia, M.

Paper	Title	Page
MOPC145	Commissioning of the ECR Ion Sources at CNAO Facility	415
	G. Ciavola, L. Celona, S. Gammino, F. Maimone INFN/LNS, Catania C. Bieth, W. Bougy, G. Gaubert, O. Tasset, A. C.C. Villari PANTECHNIK, BAYEUX A. Galatà INFN/LNL, Legnaro, Padova R. Monferrato, M. Pullia CNAO Foundation, Milan
	The Centro Nazionale di Adroterapia Oncologica (National Center for Oncological Hadrontherapy, CNAO) is the Italian center for deep hadrontherapy. It will deliver treatments with active scanning both with proton and carbon ion beams. At CNAO two ECR sources of the Supernanogan type (built by the Pantechnik company according to specifications set by INFN) are installed and run continuously and in parallel, to allow the fast change of the particle species. The two sources are identical and can provide both particle species after a simple switch from one gas to the other, which allows as well to run the facility, in emergency, with only one source. Each source is equipped with a dedicated beam line including a spectrometer and beam diagnostics. Optimisation of beam emittance and intensity is of primary importance to obtain the necessary current at the RFQ-LINAC and then at injection. The preliminary tests have shown the complete fulfillment of the specifications in terms of beam current and emittance and the final tests are ongoing. A description of the source design and performance will be presented.
TUOCG02	Status Report on the Centro Nazionale di Adroterapia Oncologica (CNAO)	982
	M. Pullia CNAO Foundation, Milan
	The Centro Nazionale di Adroterapia Oncologica (National Center for Oncological Hadrontherapy, CNAO) is the Italian center for deep hadrontherapy. It will deliver treatments with active scanning both with proton and carbon ion beams. The accelerator complex is based on a 25 m diameter synchrotron capable of accelerating carbon ions up to 400 MeV/u and protons up to 250 MeV. Four treatment lines, in three treatment rooms, are foreseen in the first stage. In one of the three rooms a vertical and a horizontal fixed beam lines are provided, while in the other two rooms the treatment will be administered with horizontal beams only. The injection chain is positioned inside the synchrotron ring itself, to save space and to better exploit the two non-dispersive regions in the synchrotron. The injection chain is made by a 8 keV/u Low Energy Beam Transfer line (LEBT), a RFQ accelerating the beam to 400 keV/u, a LINAC to reach the injection energy of 7 MeV/u and a Medium Energy Beam Transfer line (MEBT) to transport the beam to the synchrotron. This report describes the design and the performances of the CNAO complex, and reports about the status of the commissioning of the machine.
	Slides
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
THPP120	Measurements on an A/D Interface Used in the Power Supply Control System of the Main Dipoles of CNAO	3638
	G. Franzini, D. Pellegrini, M. Serio, A. Stella INFN/LNF, Frascati (Roma) M. Donetti, M. Pezzetta, M. Pullia CNAO Foundation, Milan
	The CNAO (the Italian Centre of Oncological Hadrontherapy, near Pavia) is in its final step of construction and is about to be fully operative. It is based on a synchrotron that can accelerate protons up to 250MeV and carbon ions up to 400MeV/u for the treatment of patients. In this paper we describe an A/D interface, used in the power supply control system of the synchrotron main dipoles, called B-Train. The field is measured in a dedicated dipole connected in series with the sixteen ones of the synchrotron and is then fed back to the power supply. The field is obtained integrating and digitizing the voltage induced on a pickup coil inserted in the gap of the seventeenth dipole. The A/D interface under study is based on a 64-channel current to frequency converter ASIC, in CMOS 0.35 μm technology, followed by a counter and uses a recycling integrator technique. The digital signal obtained is then used to generate a feedback signal for control system of the dipoles power supply. We present the electronic structure, the lab measurements and the behavior for various setups of the A/D interface described.