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Design of a Continuous Wave Heavy Ion RFQ for BISOL

Shuo Liu, Meiyun Han, Yuanrong Lu, Qiuyun Tan, Zhi Wang, Lin, Liu (Ed.), Byrd, John M. (Ed.), Regis Neuenschwander (Ed.), Picoreti, Renan (Ed.), Schaa, Volker R. W. (Ed.)
2021

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The Beijing isotope separation online (BISOL) facility will be used to study the new physics and technologies at the limit of the nuclear stability. The post accelerator for BISOL facility aims to accelerate radioactive beams to 150MeV/u. As an injector for the downstream superconducting linac, a 4-vane RFQ operating at 81.25MHz is needed to accelerate high-charge-state ions such as 132Sn²²⁺ from 3keV/u to 500keV/u in CW mode. We have compared two kinds of beam dynamics of BISOL RFQ with and
more » ... hout a Multi-Harmonic Buncher (MHB) bunching the continuous wave beam up-stream of the RFQ. The results indicate that it is possible to keep transverse emittance growth within tolerable limits while the longitudinal emittance is much smaller than the design without an external buncher. The acceleration of multi-charge beams simultaneously in the RFQ is also discussed in this paper.
doi:10.18429/jacow-ipac2021-mopab268 fatcat:xkzz5boi4bccngibtrlqbtzfhu
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Shuo Liu, Meiyun Han, Yuanrong Lu, Qiuyun Tan, Zhi Wang, Lin, Liu (Ed.), Byrd, John M. (Ed.), Regis Neuenschwander (Ed.), Picoreti, Renan (Ed.), Schaa, Volker R. W. (Ed.). "Design of a Continuous Wave Heavy Ion RFQ for BISOL." (2021) Brazil