Physics – Accelerator Physics
Scientific paper
2000-08-16
eConf C000821 (2000) MOD13
Physics
Accelerator Physics
Linac 2000, MOD13, 3 pages, 7 figures
Scientific paper
The GSI Unilac was upgraded as a high current injector for the SIS in 1999. Therefore, the stripping section [1] at 1.4 MeV/u, where a beam transport under highest space charge conditions and multi beam operation had to be established, was completely new designed. Results of the commissioning of the stripper section will be presented. The beam transport to the new gas stripper, and the charge state analysis under space charge conditions confirmed the calculations. A 238U4+ beam - coming from a MEVVA ion source and accelerated by the new injector linac- was stripped (with the expected stripping efficiency) to the charge state 28+ and successfully separated by the new spectrometer (15 degree and 30 degree kicker magnets). The transport and matching to the poststripper accelerator under highest space charge conditions was investigated with a 15 emA 40Ar10+ beam. Especially space charge and charge state dependent emittance growth effects in 6d-phase space will be discussed.
Barth Wolf
Forck P.
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