Author: D’Agostino, G.
Paper Title Page
MOP014 3D Magnetic Optimization of the New Extraction Channel for the LNS Superconducting Cyclotron 54
 
  • L. Neri, L. Allegra, L. Calabretta, G. Costa, G. D’Agostino, G. Gallo, D. Rifuggiato, A.D. Russo, G. Torrisi
    INFN/LNS, Catania, Italy
 
  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.  
poster icon Poster MOP014 [2.968 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP014  
About • paper received ※ 15 September 2019       paper accepted ※ 24 September 2019       issue date ※ 20 June 2020  
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TUP011 Upgrade of the Central Region of the Superconducting Cyclotron at INFN-LNS 177
 
  • G. D’Agostino, L. Calabretta, D. Rifuggiato
    INFN/LNS, Catania, Italy
  • W.J.G.M. Kleeven
    IBA, Louvain-la-Neuve, Belgium
 
  The Superconducting Cyclotron (CS) at INFN-LNS is regularly operated with beam power up to 100 W. The present efforts in upgrading the cyclotron are directed towards an increase of beam power up to 10 kW for ions with mass number A < 40 and energies between 15 and 70 AMeV by means of increase of beam intensity. Moreover, a beam energy resolution of 0.1% is requested by the NUMEN project at INFN-LNS. We plan to achieve high beam power by increasing the efficiency of the injection and extraction processes. The current extraction efficiency is lower than 60%. We expect to increase it to a value close to 100% by extracting the specific ion beams by stripping and no longer by electrostatic deflectors. A spiral inflector is used to bent onto the median plane the ion beams produced by the two ECR ion sources. Including the effect of a drift buncher placed in the axial injection line, the current injection efficiency is about 15%. The study of an upgraded CS central region is ongoing at INFN-LNS. First results of simulation study aimed to increase the injection efficiency are presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP011  
About • paper received ※ 14 September 2019       paper accepted ※ 25 September 2019       issue date ※ 20 June 2020  
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