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Measurement of the Sixty GHz ECR Ion Source using Megawatt magnets - SEISM magnetic field map

Abstract : LPSC has developed a 60 GHz Electron Cyclotron Resonance (ECR) Ion Source prototype called SEISM. The magnetic structure uses resistive polyhelix coils designed in collaboration with the French National High Magnetic Fields Facility (LNCMI) to produce a CUSP magnetic configuration. A dedicated test bench and appropriate electrical and water cooling environments were built to study the validity of the mechanics, the thermal behaviour and magnetic field characteristics obtained at various current intensities. During the last months, measurements were performed for several magnetic configurations, with up to 7000 A applied on the injection and extraction coils sets. The magnetic field achieved at 13000 A is expected to allow 28 GHz ECR condition, so by extrapolation 60 GHz should be possible at about 28000 A. However, cavitation issues that appeared around 7000 A are to be solved before carrying on with the tests. This contribution will recall some of the crucial steps in the prototype fabrication, and show preliminary results from the measurements at 7000 A. Possible explanations for the differences observed between the results and the simulation will be given.
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http://hal.in2p3.fr/in2p3-00512343
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, August 30, 2010 - 9:55:03 AM
Last modification on : Monday, July 20, 2020 - 9:18:22 AM

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  • HAL Id : in2p3-00512343, version 1

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M. Marie-Jeanne, J. Jacob, T. Lamy, L. Latrasse, F. Debray, et al.. Measurement of the Sixty GHz ECR Ion Source using Megawatt magnets - SEISM magnetic field map. XIXth International Workshop on ECR Ion Sources (ECRIS 2010), Aug 2010, Grenoble, France. pp.MOCOCK04. ⟨in2p3-00512343⟩

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