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Challenges and Prospects of Electron Cyclotron Resonance Charge Breeding |
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- T. Thuillier, J. Angot, M.A. Baylac, S.B.B. Bhaskar, J.B. Cully, J. Jacob, T. Lamy, A. Leduc, P. Sole
LPSC, Grenoble Cedex, France
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Electron cyclotron resonance charge breeder (ECR CB) is one of the instruments used to boost the radioactive ion beam (RIB) charge state in isotope separator on-line (ISOL) facilities. While the ECR CB can manage intense 1+ RIB without difficulty, the present CB generation co extracts significant amounts of impurities which can be detrimental to the study of very low intensity N+ RIB in today facilities if no downstream high mass resolution separation is available. This work investigates the im-provements achievable with a new generation 18 GHz ECR CB applicable to future facility like EURISOL. The study shows that with a modified ion source geometry, an optimized magnetic confinement, a careful wall metal choice like beryllium, a UHV vacuum technology, the charge breeder performance will improve as follows: 20 % higher capture efficiency, -40% charge breeding time, charge state ion production with mass over charge of 3 up to xenon and over 6 up to uranium, co-extracted contam-inant density reduction by a factor 60 to 600. An 18 GHz ECR CB ion source layout is finally proposed for EURISOL.
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Slides MOC1 [2.061 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-ECRIS2018-MOC1
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