Author: Lu, Y.R.
Paper Title Page
WEPAB258 Beam Dynamics Design of a 162.5 MHz Superconducting RFQ Accelerator 3248
 
  • Ying. Xia, H.P. Li, Y.R. Lu, Q.Y. Tan, Z. Wang
    PKU, Beijing, People’s Republic of China
  • Y.R. Lu
    IAP, Frankfurt am Main, Germany
 
  Superconducting(SC) RFQ has lower power consumption, larger aperture and higher accelerating gradient than room temperature RFQ. We plan to design a 162.5MHz SC RFQ to accelerate the 30 mA proton beams from 35 keV to 2.5 MeV, which will be used as a neutron source for BNCT and neutron imaging project. At an inter-vane voltage of 180kV, the beam dynamics design was carried out with acceptable peak surface electric field, high transmission efficiency, and relatively short cavity length.  
poster icon Poster WEPAB258 [1.251 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB258  
About • paper received ※ 17 May 2021       paper accepted ※ 06 July 2021       issue date ※ 14 August 2021  
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MOPAB268 Design of a Continuous Wave Heavy Ion RFQ for BISOL 851
 
  • S. Liu, M.Y. Han, Y.R. Lu, Q.Y. Tan, Z. Wang
    PKU, Beijing, People’s Republic of China
 
  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 without 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.  
poster icon Poster MOPAB268 [1.829 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB268  
About • paper received ※ 19 May 2021       paper accepted ※ 25 May 2021       issue date ※ 16 August 2021  
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