Beam Dynamics Design of a 50mA D$^{+}$ RFQ
Fang-Jian Jia1 , Kun Zhu1** , Yuan-Rong Lu1** , Zhi Wang1 , Zhi-Yu Guo1 , Qi Fu1 , Yuan He2
1 State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 1008712 Institute of Modern Physics, China Academy of Sciences, Lanzhou 730000
Abstract ：A new 973 project was proposed by Peking University and Institute of Modern Physics of Chinese Academy of Sciences recently. The project requires a 50 mA, 162.5 MHz, cw mode radio frequency quadrupole (RFQ) to accelerate the D$^{+}$ to 1 MeV. In a high-current linear accelerator, the strong space charge effect causes the growth of envelope and emittance along with heavy beam losses. In the beam dynamics design of this RFQ, beam envelope mismatching is discussed and a matching dynamics method is proposed to minimize the envelope and emittance growth. The influence of limiting current on the beam transmission is discussed and used in the optimization of transverse and longitudinal parameters. After the optimization, the beam transmission efficiency reaches higher than 98%.
收稿日期: 2016-02-25
出版日期: 2016-08-01
:
29.27.Bd
(Beam dynamics; collective effects and instabilities)
29.20.Ej
(Linear accelerators)
引用本文:
. [J]. 中国物理快报, 2016, 33(07): 72901-072901.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/33/7/072901
或
https://cpl.iphy.ac.cn/CN/Y2016/V33/I07/72901
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2016, Vol. 33 
