WEA —  Applications & Optics   (20-Jun-12   08:45—10:00)
Chair: P.G. Bricault, TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
Paper Title Page
WEA01 Advanced Accelerator Technology Aspects for Hadron Therapy 156
  • L. Falbo
    CNAO Foundation, Milan, Italy
  Nowadays cancer can be considered as one of the wide spread diseases all around the world. Radiotherapy is the clinical technique used in 40% of cancer treatments: nowadays about 40% of the 18000 particle accelerators running in the world are devoted to radiotherapy. Classical radiotherapy employs photons and electrons that damage not only the diseased cells but also the healthy ones. Hadrontherapy is a high-precision radiotherapy exploiting the depth-dose deposition characteristics of the hadron particles. The realization of machines for hadrontherapy is more challenging than for standard radiotherapy: while most of hospitals have a device for classical radiotherapy, the hadrontherapy needs a dedicated building with the needed technology for the hadron acceleration. The first hadrontherapy treatments have been performed in particle physics research centers clinically adapted; nowadays there are dedicated facilities designed and built as hadrontherapy centers. This paper will give an overview on the existing hadrontherapy centers presenting the technologic background that is at the basis of the hadrontherapy world.  
slides icon Slides WEA01 [4.493 MB]  
WEA02 Focusing of Intense Heavy Ion Beams with Plasma Lenses 163
  • O. Meusel, M. Droba, U. Ratzinger, K. Schulte
    IAP, Frankfurt am Main, Germany
  Gabor lenses are a special type of plasma lens using a stable confined electron cloud for beam focusing. The electrons provide space charge neutralization of the beam traveling through the lens volume. At the same time a radial symmetric electrostatic self field focuses the beam mass independently. It is possible to control the density and distribution of the confined electrons providing variable focusing strength and moderate emittance growth of the beam. The knowledge of the behavior of the electron column inside this lens type is essential to understand the impact on beam transport. Therefore several diagnostic tools were developed to measure the electron cloud properties with and without ion beam propagation through Gabor lenses. Based on experimental results a new Gabor plasma lens has been designed for focusing heavy ion beams. A comparison of this lens type and a superconducting solenoid is planned at the low energy transport section of the GSI - High Current Test Injector (HOSTI).  
slides icon Slides WEA02 [1.572 MB]