Design and cold measurements of a coupled RFQ-SFRFQ cavity. (1st February 2022)

• Record Type: Journal Article
• Authors: Wang, Z.; Tan, Q.Y.; Lu, Y.R.; Gao, S.L.; Xia, Y.; Liu, S.; Han, M.Y.; Zhao, J.
• Is Part Of: Journal of instrumentation. Volume 17:Number 2(2022)
• Publication Date: 2022-02-01
• Subjects: Accelerator modelling and simulations (multi-particle dynamics, single-particle dynamics) -- Beam dynamics -- Accelerator Applications; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/17/02/T02008
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: Based on the previous research on 26 MHz coupled RFQ-SFRFQ (Radio Frequency Quadrupole-Separated-function Radio Frequency Quadrupole) cavity, we propose a higher frequency coupled RFQ-SFRFQ structure to accelerate proton beam from 35 keV to 2.5 MeV in continuous wave (CW) mode. RFQ and SFRFQ are placed in a single cavity, which greatly reduces the size of the accelerator. Instead of two RF amplifiers, only one RF amplifier is needed with this structure, as a result, this structure becomes more compact. The beam dynamic design and electromagnetic simulation have been accomplished. A 104 MHz coupled RFQ-SFRFQ aluminum model cavity has been constructed and tested at low power successfully, and the results show good agreement with the simulations.