JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{feng:sap2023-tupb013,
% --- JACoW template Dec 2024 ---
author = {B.Y. Feng and H.B. Chen and Q. Gao and X. Lin and J.R. Shi and H. Zha},
title = {{Multipole Field Optimization of X-Band High Gradient Structure}},
booktitle = {Proc. 14th Symp. Accel. Phys. (SAP'23)},
eventdate = {2023-07-10/2023-07-12},
pages = {108--110},
eid = {TUPB013},
language = {english},
keywords = {multipole, quadrupole, cavity, simulation, acceleration},
venue = {Xichang, China},
series = {Symposium on Accelerator Physics},
number = {14},
publisher = {JACoW Publishing},
location = {Geneva, Switzerland},
date = {2024-11},
month = {11},
year = {2024},
isbn = {978-3-95450-265-3},
doi = {10.18429/JACoW-SAP2023-TUPB013},
url = {https://jacow.org/sap2023/papers/tupb013.pdf},
abstract = {{The X-band constant gradient acceleration structure plays a crucial role in the VIGAS project. However, the presence of a multipole field component in the struc-ture’s coupler leads to an increase in ray bandwidth and a decrease in yield, ultimately affecting the quality of the generated rays. Through calculations, it has been determined that the quadrupole field component is particularly prominent in the original structure, ac-counting for 29.5\% of the fundamental mode strength. Therefore, it is necessary to modify the cavity struc-ture of the coupler. By altering the shape of the cavity to two staggered circles, the objective of reducing the quadrupole field is achieved. The optimized quadru-pole field component now accounts for approximately 0.3\% of the fundamental mode strength. Subsequently, the non-resonant perturbation method was employed to simulate and experimentally measure the magnitude of the multipole field component in the actual acceler-ation cavity.}},
}