Extraction and low energy transport of negative ions

  • High perveance negative ion beams with low emittance are essential for several next generation particle accelerators (i. g. spallation sources like ESS [1] and SNS [2]). The extraction and transport of these beams have intrinsic difficulties different from positive ion beams. Limitation of beam current and emittance growth have to be avoided. To fulfill the requirements of those projects a detailed knowledge of the physics of beam formation the interaction of the H- with the residual gas and transport is substantial. A compact cesium free H- volume source delivering a low energy high perveance beam (6.5 keV, 2.3 mA, perveance K= 0.0034) has been built to study the fundamental physics of beam transport and will be integrated into the existing LEBT section in the near future. First measurements of the interaction between the ion beam and the residual gas will be presented together with the experimental set up and preliminary results.

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Author:Andreas LakatosGND, Jürgen PozimskiGND, Ansgar JakobGND, Horst Klein
Parent Title (German):Proceedings 6th EPAC Conference 1998 Stockholm
Document Type:Article
Date of Publication (online):2005/08/11
Year of first Publication:1998
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/08/11
Page Number:3
First Page:535
Last Page:525
Source:Proc 6th EPAC Conf. 1998 Stockholm, pp. 523-525 , http://accelconf.web.cern.ch/accelconf/l98/PAPERS/TU4056.PDF
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht