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ECR Ion Sources

  • Chapter
The Physics of Multiply and Highly Charged Ions

Abstract

At the beginning of every experiment involving multiply charged ions there is a suitable ion source that is able to deliver a beam of the desired element in a specific charge state with sufficient intensity. For experiments that require intense beams of multiply charged ions in the c/w mode, Electron Cyclotron Resonance (ECR) ion sources are very commonly used. These ion sources are able to produce ions from virtually any element, they are easy to operate and have an excellent long—term stability as well as a very good reproducibility.

In this chapter, the basic mechanisms of the plasma confinement by magnetic fields and the electron heating with microwave radiation using ECR will be discussed. Furthermore, methods of improving the performance of an ECR ion source (e.g. gas mixing, afterglow effect, etc.) will be described.

There are currently two main directions in the development of ECR ion sources. On one hand, higher charges states with higher intensities are required for some experiments. In order to produce these ions, the applied microwave frequency and power as well as the necessary magnetic fields have to be increased. On the other hand, compact all—permanent magnet ECR ion sources are constructed, which have a low electrical power consumption and are therefore well suited for the use on high—voltage platforms or Van—de—Graaff accelerators. The realisation of both types of ion sources will be described.

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Author information

Authors and Affiliations

  1. Institut für Kernphysik, Universität Giessen, 35392, Giessen, Germany

    R. Trassl

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  1. R. Trassl
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Editor information

Editors and Affiliations

  1. Department of Physics, The Queen’s University, Belfast, Northern Ireland

    Fred J. Currell

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© 2003 Springer Science+Business Media Dordrecht

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Trassl, R. (2003). ECR Ion Sources. In: Currell, F.J. (eds) The Physics of Multiply and Highly Charged Ions. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0542-4_1

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  • DOI: https://doi.org/10.1007/978-94-017-0542-4_1

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-481-6402-8

  • Online ISBN: 978-94-017-0542-4

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