Résumé du preprint DAPNIA-02-62

DAPNIA-02-62
High intensity ECR ion source (H+, D+, H-) developments at CEA/SACLAY.
R. Gobin, P-Y. Beauvais, D. Bogard, G. Charruau, O. Delferrière, D. De Menezes, A. France, R. Ferdinand, Y. Gauthier, F. Harrault, J-L. Jannin, J-M. Lagniel, P-A. Leroy, P. Mattéi, A. Sinanna, J. Sherman(1), Commissariat à l'Energie Atomique, CEA-Saclay, DSM/DAPNIA/SEA 91191 Gif sur Yvette Cedex, France (1) Permanent address: Los Alamos National Laboratory, Los Alamos, N.M. 87 545, USA P. Ausset, S. Bousson, B. Pottin, Centre National de la Recherche Scientifique, IN2P3, IPN, 91 405 Orsay Cedex, France,
The SILHI (Source of Light Ions with High Intensities) source has been producing proton beams since 1996. The first aim is to produce up to 100 mA cw beams at 95 keV for IPHI (Injector of Protons for High Intensity) demonstrator. This prototype is developed by a CEA/DSM – CNRS/IN2P3 collaboration for applications such as Accelerator Driven Systems for nuclear waste transmutation, production of radioactive ion beams or secondary particles. To measure installation reliability, continuous five-day long runs have been performed. In October 1999, a 99.96 % availability was achieved with a single short beam off and a 103 H uninterrupted beam. A new extraction system leads to lower beam losses and higher LEBT transparency. SILHI now produces 95 keV - 130 mA total beam with a proton fraction higher than 80 %. An up to 157 mA (247 mA/cm2) total CW beam has been extracted. The new EPICS control system, EMI-hardened devices and automatic control procedures now allows us to do longer runs. To analyze the reliability of these upgrades, a 4-week test was planned. In the framework of the IFMIF project CEA participation, 135 mA-95 kV deuteron pulsed beams were produced. Extraction simulations and recent SILHI results are also presented. In addition, a new test bench has been recently developed to analyze H- beam production.

 

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