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TY - CONF AU - Neri, L. AU - Allegra, L. AU - Calabretta, L. AU - Costa, G. AU - D'Agostino, G. AU - Gallo, G. AU - Rifuggiato, D. AU - Russo, A.D. AU - Torrisi, G. ED - Conradie, Lowry ED - De Villiers, John Garrett ED - Schaa, Volker RW TI - 3D Magnetic Optimization of the New Extraction Channel for the LNS Superconducting Cyclotron J2 - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019 CY - Cape Town, South Africa T2 - International Conference on Cyclotrons and their Applications T3 - 22 LA - english AB - The upgrade of the Superconducting Cyclotron operating at INFN-LNS is the main objective of the general upgrade of the LNS facility, consisting in the enhancement of light ion beam intensity. To overcome the present maximum power of 100 W of the beam extracted by electrostatic deflector and achieve a beam power as high as 10 kW, the implementation of the extraction by stripping method has been proposed. Intense ion beams with mass in the range 10 to 40 amu (12C, 18O, 20Ne, 40Ar) in the energy range of interest (15-70 MeV/u) will be delivered to the NUMEN experiment, as well as used for production of in-flight radioactive beams. The present work consists in the optimization of the magnetic channels needed to limit the radial and axial beam envelopes. The design of the magnetic channels has been accomplished by fully three-dimensional magneto-static simulations using Comsol Multiphysics and a custom transport code developed in Matlab along the last year at INFN-LNS. The effect of a magnetic shielding structure in the extraction channel is presented, together with the possibility of producing a magnetic gradient from an asymmetric coil. PB - JACoW Publishing CP - Geneva, Switzerland SP - 54 EP - 57 KW - cyclotron KW - simulation KW - extraction KW - focusing KW - acceleration DA - 2020/06 PY - 2020 SN - 978-3-95450-205-9 DO - doi:10.18429/JACoW-Cyclotrons2019-MOP014 UR - http://jacow.org/cyclotrons2019/papers/mop014.pdf ER -