Beam Dynamics Design of a 50 mA D+ RFQ

Fang-Jian Jia, Kun Zhu, Yuan-Rong Lu, Zhi Wang, Zhi-Yu Guo, Qi Fu, Yuan He
2016 Chinese Physics Letters  
The beam dynamic design of a 325 MHz Radio Frequency Quadrupole (RFQ) is presented in this paper. This 4-vane RFQ will accelerate pulsed proton beam from 30 keV to 3 MeV with repetition frequency of 1 MHz. A 1 MHz chopper and a 5 MHz buncher are arranged in the Low-Energy-Beam-Transport (LEBT) to produce the injected beam. The beam length at the RFQ entrance is about 3 ns, and the energy-spread is about 10%. The code of PARMTEQM is used to simulate RFQ structure. The design should realize high
more » ... hould realize high transmission for very high intensity beam meanwhile low emittance growth and relatively short length should be kept.
doi:10.1088/0256-307x/33/7/072901 fatcat:t4jv3y7l7ncbzllpetfzgv4qiq