Author: Silze, A.
Paper Title Page
MOPRI085 IMALION – Creation and Low Energy Transportation of a Milliampere Metal Ion Beam 809
 
  • A. Silze, M. Kreller, G.H. Zschornack
    DREEBIT GmbH, Dresden, Germany
  • U. Hartung, T. Kopte, T. Weichsel
    Fraunhofer FEP, Dresden, Germany
 
  Funding: This work is supported by the European Regional Development Fund (ERDF) and the Freistaat Sachsen (project no. 100074113 and 100074115).
IMALION – which stands for IMplantation of ALuminum IONs – is a facility originally designed for applications in photovoltaics and other branches in semiconductor industry. The idea was to create and guide a milliampere beam of low charged metal ions so that targets with a width of 20 cm and more can be irradiated homogeneously with minimal differences in intensity and entrance angle of the incoming beam over the entire surface. In this poster, we outline the solutions which had to be found during the realization of the project. This concerns the production of a milliampere metal ion current in a newly designed electron cyclotron resonance (ECR) ion source combined with an internal sputter magnetron device. Stable operation of the sputter magnetron under ECR magnetic mirror conditions has been proven by optical spectroscopy and Langmuir probe measurements. Furthermore, electrostatic and magnetic beamline elements developed for precision guiding of a low energy but high intensity beam as well as high intensity ion beam diagnostics are presented and ion beam transportation simulations are shown.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRI085  
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WEPRO083 Implementation of a Superconducting Electron Beam Ion Source into the HIT Ion Source Test Bench 2153
 
  • E. Ritter, A. Silze, G.H. Zschornack
    DREEBIT GmbH, Dresden, Germany
  • R. Cee, Th. Haberer, A. Peters, T.W. Winkelmann
    HIT, Heidelberg, Germany
  • G. Zschornack
    TU Dresden, Dresden, Germany
 
  Cancer therapy with light heavy ions is now a well proven technology. Almost all facilities are running Electron Cyclotron Resonance Ion Sources (ECRIS) to produce carbon ions and protons as well. In the 1990’s the idea of using a Electron Beam Ion Source was proposed (EBIS) [1]. Some proof of principle measurements were carried out [2] but the application of EBIS ion sources in radiation facilities has not been established. We present results from the implementation of a superconducting EBIS, the Dresden EBIS-SC, at an RFQ accelerator at the testbench of the Heidelberg Ion Therapy Center (HIT). First results from C 4+ ions produced by the Dresden EBIS-SC [3] and injection in an RFQ accelerator at the HIT testbench are shown. Furthermore, emittance measurements as well as investigations of the ion energy and the transmission through the RFQ were done. The emittance of the EBIS source is lower by a factor of nine compared to an ECRIS, which improves the transmission through the RFQ. With the current setup the ion output from the EBIS-SC is lower by a factor of 7 compared to an ECRIS to fulfill the requirements of the highest irradiation level. Further improvements are discussed.
* erik.ritter@dreebit.com
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO083  
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