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Stripping of 9 GeV/u Uranium ions PowerPoint Presentation
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Stripping of 9 GeV/u Uranium ions

Stripping of 9 GeV/u Uranium ions

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Stripping of 9 GeV/u Uranium ions

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  1. Stripping of 9 GeV/u Uranium ions Estimates by P. Thieberger based on the program CHARGE which is now part of the code LISSE++ ( http://lise.nscl.msu.edu/lise.html)

  2. Conclusions • Removing electrons from a 9 GeV 90+ (helium like) uranium beam by stripping in different materials of various thicknesses and then selecting the resulting He-like or H-like ions is an effective method of generating low intensity beams. • Using strippers thick enough to approach equilibrium achieves the largest attenuations with the smallest yield uncertainties. • The largest attenuation factor available is ~1E-6 by using aluminum or silicon. • With tungsten one can get a reduction factor of ~2.7E-5. • The present 0.001” thick tungsten ATR stripper produces ~1% of charge 91+ and ~6E-5 of charge 90+