Beam experiments on the RFQ and SFRFQ combined accelerator system

Kang, Min Jueng; Wang, Z.; Chen, J.E.; Lu, Yuanrong; Gao, Shuli; Yan, Xueqing; Peng, Shixiang; Zhao, Jie; Ren, Haitao; Guo, Zhiyu

doi:10.1016/j.nima.2012.11.001

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“…The codes PARMTEQM and SFRFQDYN were used for the beam dynamic design of the RFQ section and SFRFQ section respectively, and CST Microwave Studio (MWS) [14] was used for During the RF test of the CRS cavity, the perturbation method was adopted to measure the longitudinal electric field distribution at different transverse positions [15]. An upgraded XFD-X5 RF power source [16] was used for the high RF power test of the CRS cavity.…”

Section: Introductionmentioning

confidence: 99%

Beam commissioning of the coupled RFQ-SFRFQ cavity

Wang¹,

Xia²,

Lu³

et al. 2021

J. Inst.

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We developed a novel compact structure, called a Coupled RFQ-SFRFQ (CRS), to accelerate a 0.8 MeV helium beam for a materials irradiation project. A high accelerating efficiency was achieved by replacing the accelerating section of the radio frequency quadrupole (RFQ) with a separated-function radio frequency quadrupole (SFRFQ) structure, in a single cavity. Following the electromagnetic simulations, RF measurement of the CRS cavity was performed, including low RF power and high RF power measurement. Recently, beam experiments on the CRS linac indicated that the maximum accelerated beam current could reach 2 mA with an energy of 0.8 MeV and energy spread (FWHM) of 3.1%. The experimental measurement results showed good consistency with the beam dynamics simulations.

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Section: Introductionmentioning

confidence: 99%