A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Ciavola, G.

Paper Title Page
MOPC140 Status of the Multipurpose Fully Superconducting ECR Ion Source 400
 
  • G. Ciavola, L. Celona, S. Gammino, F. Maimone, D. Mascali
    INFN/LNS, Catania
  • H. A. Koivisto
    JYFL, Jyvaskyla
  • R. Lang, J. Maeder, J. Rossbach, P. Spaedtke, K. Tinschert
    GSI, Darmstadt
 
  The MSECRIS source has been designed with the aim to exceed the highest currents of highly charged heavy ions available up to now. It is based on a minimum B trap made of a hexapole and three solenoids. The design magnetic field is 2.7 T for the hexapole and 4.5 T for the mirror field, in order to permit to operate not only at 28 GHz but also at higher frequency, thus increasing the plasma density and finally the beam current. Such high level of magnetic field is a challenge because of the forces arising on the superconducting coils and it largely exceeds the highest magnetic field available for existing ECRIS. A description of the source and of its preliminary results will be given. The source has been built in the frame of the European collaboration EURONS/JRA07-ISIBHI and it is now installed at the EIS testbench of GSI.  
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.  
MOPC151 Status of the Versatile Ion Source VIS 430
 
  • F. Maimone, L. Celona, F. Chines, G. Ciavola, G. Gallo, N. Gambino, S. Gammino, D. Mascali, R. Miracoli, S. Passarello, E. Zappalà
    INFN/LNS, Catania
 
  The characteristics of the ideal injector for high power proton accelerators has been studied in the past with the TRIPS ion source built at INFN-LNS, Catania and now in operation at INFN-LNL, Legnaro. The beam production must obey to the request of high brightness, stability and reliability. The new Versatile Ion Source (VIS) is a permanent magnet version of the TRIPS source with a simplified and robust extraction system. It operates up to 80 kV without a bulky high voltage platform, producing multi-mA beams of protons and H2+. The description of the source design and the preliminary performance will be presented. An outline of the forthcoming developments is given, with particular care to the use of a low loss dc break and to the use of a travelling wave tube amplifier to get an optimum matching between the microwave generator and the plasma.