Low energy beam transport for HIDIF : preprint for the HIDIF 2000 Meeting

  • Low energy beam transport (LEBT) for a future heavy ion driven inertial fusion (HIDIF [1]) facility is a crucial point using a Bi+ beam of 40 mA at 156 keV. High space charge forces (generalised perveance K=3.6*10-3) restrict the use of electrostatic focussing systems. On the other hand magnetic lenses using space charge compensation suffer from the low particle velocity. Additionally the emittance requirements are very high in order to avoid particle losses in the linac and at ring injection [2]. urthermore source noise and rise time of space charge compensation [3] might enhance particle losses and emittance. Gabor lenses [4] using a continuous space charge cloud for focussing could be a serious alternative to conventional LEBT systems. They combine strong cylinder symmetric focussing with partly space charge compensation and low emittance growth due to lower non linear fields. A high tolerance against source noise and current fluctuations and reduced investment costs are other possible advantages. The proof of principle has already been shown [5, 6]. To broaden the experiences an experimental program was started. Therefrom the first experimental results using a double Gabor lens (DGPL, see fig. 1 ) LEBT system for transporting an high perveance Xe+ beam will be presented and the results of numerical simulations will be shown.

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Author:Oliver MeuselGND, Jürgen PozimskiGND, Ansgar JakobGND, Andreas LakatosGND
Document Type:Conference Proceeding
Date of Publication (online):2005/08/12
Year of first Publication:2000
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:HIDIF 2000 Meeting
Release Date:2005/08/12
Preprint des Tagungsbeitrags HIDIF 2000 Meeting San Diega, USA, publ. auch in NIM A 464 (2001) S. 512-517
Source:Preprint des Tagungsbeitrags HIDIF 2000 Meeting San Diego, USA, publ. auch in NIM A 464 (2001) p.512-517, mikro1.physik.uni-frankfurt.de/lebt/bibliothek/lebt2000/hif2000/hif2000.pdf
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht