Author: Boine-Frankenheim, O.
Paper Title Page
MOPLR051 Simulation of Gas and Plasma Charge Strippers 248
SPWR038   use link to see paper's listing under its alternate paper code  
 
  • O.S.H. Haas, O. Boine-Frankenheim
    TEMF, TU Darmstadt, Darmstadt, Germany
 
  Funding: This work is supported by the BMBF as part of project 05P15RDRBA.
Charge stripping of intense heavy ion beams is a major challenge in current and future linear heavy ion accelerators. Conventional stripping techniques are limited in their applicability, e.g. solid carbon foils suffer from short lifetimes at high intensities. One possible alternative is the use of a plasma as a stripping medium, which the presented work focuses on. The main goal of the studies is the prediction of the final charge state distribution of the ion beam. Rate equations were implemented numerically, taking into account different models for ionization, recombination and energy loss processes. First quantitative results are presented in form of an overview of the charge state distributions of different charge stripping media. For fixed projectile properties and target phase, it is observed that the mean charge state q0 decreases for increasing nuclear charge Z\text{T} of the target. Plasmas show significantly increased q0 for the same ZT. The width d of the charge state distributions is larger for higher Z\text{T}. The latter is caused by multiple loss of the projectile and decreases the maximum stripping efficiency by typically less than a factor of 2.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-MOPLR051  
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