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Schempp, A.

Paper Title Page
TPPE031 60 mA Carbon Beam Acceleration with DPIS 2206
 
  • M. Okamura, R.A. Jameson, K. Sakakibara, J. Takano
    RIKEN, Saitama
  • T. Fujimoto, S. Shibuya, T. Takeuchi
    AEC, Chiba
  • Y. Iwata, K. Yamamoto
    NIRS, Chiba-shi
  • H. Kashiwagi
    JAERI/ARTC, Gunma-ken
  • A. Schempp
    IAP, Frankfurt-am-Main
 
  We have studied "direct plasma injection scheme (DPIS)" since 2000. This new scheme is for producing very intense heavy ions using a combination of an RFQ and a laser ion source. An induced laser plasma goes directly into the RFQ without an extraction electrode nor any focusing devices. Obtained maximum peak current of Carbon 4+ beam reached 60 mA with this extremely simple configuration. The details of the experimental result will be presented.  
RPAP002 A CW RFQ Accelerator for Deuterons 794
 
  • P. Fischer, A. Schempp
    IAP, Frankfurt-am-Main
  • J. Haeuser
    NTG Neue Technologien GmbH & Co KG, Gelnhausen
 
  Funding: BMBF

A four-rod RFQ accelerator is being built to accelerate deuterons from 20 keV to 3 MeV. At an operating frequency of 176 MHz the length is 3.8 m and the power consumption 250 kW, the beam current 5 mA. A special feature is the CW-mode operation. The status of the project and properties of the RFQ will be discussed.

 
RPAP004 Simulations for the Frankfurt Funneling Experiment 901
 
  • J. Thibus, A. Schempp
    IAP, Frankfurt-am-Main
 
  Funding: BMBF

Beam simulations for the Frankfurt Funneling Experiment are done with RFQSim and FUSIONS. RFQSim is a particle dynamic program to compute macro particle bunches in the 6D phase space through a RFQ accelerator. Behind the RFQ the simulation software FUSIONS calculates both beam lines through a r.f. funneling deflector. To optimise beam transport of existing and new funneling deflector structures FUSIONS is presently being developed. The status of the development of FUSIONS and the results will be presented.

 
FOAB009 The Frankfurt Funneling Experiment 677
 
  • H. Zimmermann, U. Bartz, D. Ficek, P. Fischer, N. Mueller, A. Schempp, J. Thibus, M. Vossberg
    IAP, Frankfurt-am-Main
 
  Funding: BMBF

Funneling is a technique to multiply beam currents of rf-accelerators in several stages at low energies to prevent problems with space charge. The Frankfurt Funneling Experiment is a prototype of such a stage. Two beams accelerated in a Two-Beam RFQ are combined to one beam axis with a funneling deflector. The last part of the RFQ electrodes of our Two-Beam RFQ has been replaced to achieve a 3d focus of both beams at the beam crossing point behind the RFQ in the center of the deflector. A newly designed multi cell funneling deflector and first results of the new experimental set-up will be presented.