TH4 —  Thursday Session 4   (30-Jun-22   16:00—17:30)
Chair: C. Notthoff, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capitol Territory, Australia
Paper Title Page
Status and Perspectives of the Advanced Ion Source for Hadrontherapy (AISHa)  
  • O. Leonardi, G. Castropresenter, L. Celona, F. Chines, S. Gammino, A. Massara, L. Neri, S. Passarello, R. Reitano, D. Siliato
    INFN/LNS, Catania, Italy
  • G. Costanzo
    INFN-Pavia, Pavia, Italy
  • L. Malferrari, F. Odorici
    INFN-Bologna, Bologna, Italy
  • C. Maugeri, F. Russo
    CNAO Foundation, Pavia, Italy
  • R. Reitano
    Università degli Studi di Catania, Catania, Italy
  The Advanced Ion Source for Hadrontherapy (AISHa) is a compact electron cyclotron resonance ion source (ECRIS) operating at 18 GHz designed and developed to generate high brightness multiply charged ion beams for hadrontherapy purposes. Its peculiarities make AISHa also a suitable choice for research and industrial applications. AISHa is able to produce more than 1400 µA O6+, 500 µA C4+, 5 mA He2+. In the framework of the INSpIRIT program and in collaboration with CNAO and GSI, new ion beam candidates for cancer treatment and material irradiation are being developed. A copy of the AISHa ion source is also being installed at CNAO to expand its potential in terms of ion beam production. AISHa is also the test-bench for several R&D activities to increase ion source performance and for non-invasive plasma diagnostic purposes: an innovative active plasma chamber designed to increase plasma confinement by modifying plasma losses fluxes is under study together with a dedicated Optical Emission Spectroscopy diagnostics setup. In this work, we will discuss the status of AISHa together with the description of the forthcoming developments and perspectives.  
slides icon Slides TH4C1 [6.459 MB]  
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TH4C3 High Intensity Proton Beams at GSI (Heavy Ion) UNILAC 170
  • W.A. Barth, M. Miski-Oglu, U. Scheeler, H. Vormann, M. Vossberg, S. Yaramyshev
    GSI, Darmstadt, Germany
  • W.A. Barth, M. Miski-Oglu
    HIM, Mainz, Germany
  A significant part of the experimental program at FAIR is dedicated to pbar physics requiring a high number of cooled pbars per hour. The primary proton beam has to be provided by a 70 MeV proton linac followed by two synchrotrons. The new FAIR proton linac will deliver a pulsed high intensity proton beam of up to 35 mA of 36 µs duration at a repetition rate of 4 Hz. The GSI heavy ion linac (UNILAC) is able to deliver intense heavy ion beam for injection into SIS18, but it is not suitable for FAIR relevant proton beam operation. In an advanced machine investigation program it could be shown, that the UNILAC is able to provide for sufficient high intensities of CH3-beam, cracked (and stripped) in a supersonic nitrogen gas jet into protons and carbon ions. This new operational approach results in up to 3 mA of proton intensity at a maximum beam energy of 20 MeV, 100 µs pulse duration and a rep. rate of 4 Hz. For some time now, UNILAC proton beam operation with higher intensities has been offered as standard for users. Recent linac beam measurements will be presented, showing that the UNILAC is able to bridge the time until the FAIR-proton linac delivers high-intensity proton beams.  
slides icon Slides TH4C3 [3.539 MB]  
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About • Received ※ 11 June 2022 — Revised ※ 28 June 2022 — Accepted ※ 10 August 2022 — Issue date ※ 29 September 2022
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