Affiliation:
1. University of Chinese Academy of Science, Beijing 100049, P. R. China
2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
Abstract
For a high-power Radio Frequency quadrupole (RFQ) accelerator, it is often necessary to design a large acceptance to decrease the beam loss inside the RFQ cavity. This could allow a mismatched beam to transmit to downstream cavities, which causes beam loss along the downstream linac. Finding the matching condition of beam and RFQ is of great significance. The matching point of RFQ can be confirmed by measuring the emittance at the upstream and downstream of RFQ, which takes a long time, so the transmission efficiency scanning method is supposed to find. This paper compares the relationship among emittance, transmission efficiency, and matching point on CADS[Formula: see text] RFQ. The results show that the weighted average point of high transmission efficiency could be regarded as the matching point of RFQ. This conclusion can be widely used in beam commissioning, and the Transmission Efficiency Scanning-matching (TESM) code has been developed on other RFQs.
Funder
Nature Science Associate Foundation
Young Scientists Fund
Publisher
World Scientific Pub Co Pte Lt
Subject
General Physics and Astronomy,Nuclear and High Energy Physics
Cited by
2 articles.
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1. Development of the heavy ion RFQ for CAFE2;Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment;2024-01
2. Beam dynamics design of HIAF RFQ;International Journal of Modern Physics E;2021-12