Design of an RFQ for direct plasma injection scheme

NUCLEAR, HEAVY ION AND ATOMIC PHYSICS

Design of an RFQ for direct plasma injection scheme

ZHANG Zhouli，

R.A. Jameson，

ZHAO Hongwei，

XU Zhe，

LIU Yong，

ZHANG Shenghu，

ZHANG Cong，

SUN Liepeng，

MEI Lirong，

SHEN Xiaokang

Nuclear Science and Techniques

pp.277-280

Published in print 20 Oct 2009

DOI：10.13538/j.1001-8042/nst.20.277-280

57200

A high current radio frequency quadrupole (RFQ) is being studied at the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS) for the direct plasma injection scheme (DPIS). Because of the strong space charge of beams from laser ion source, the beam dynamics design of the RFQ has been carried out with a new code, which can deal with space charge effectively. The design of the RFQ structure is performed with an electromagnetic simulation code and the determination of parameters of the structure has been done to maximize the shunt impedance when the frequency is kept fixed. The influences of dipole mode effect and flatness on beams were also discussed.

LINACSrfq code4-rod structureDipole mode effectFlatness

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References