NUCLEAR TECHNIQUES, Volume. 46, Issue 5, 050404(2023)
Sensitivity estimation for beam position monitors using a boundary element method
To measure the beam positions of High Energy Photon Source (HEPS), different types of beam position monitors (BPMs) have been developed. The position sensitivity coefficient is an important parameter of BPMs by which the position of the beam can be calculated.
This study aims to establish a method for calculating the position sensitivity coefficient of BPMs.
The position sensitivity coefficients of various types of BPMs, such as round, elliptical, and octagonal pipes, were determined by using the boundary element method (BEM). The azimuth button angles in the elliptical BPM of the HEPS booster and the button distances in an octagonal BPM on the Beijing Electron Positron Collider II (BEPCII) storage ring were derivated by the application of BEM. Furthermore, the position sensitivity mappings of the BPMs was calculated.
The difference in sensitivity results of the round BPM calculated by the BEM and the analytical value is approximately 1%. The error between the calculated and experimental measurement results of the position sensitivity coefficients of the elliptical and octagonal sections is approximately 2%.
The BEM is a reliable method for calculating the position sensitivity coefficient of BPMs, which can be used in BPM design.
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Yong LI, Jun HE, Yanfeng SUI, Renxian YUAN, Yaoyao DU, Wan ZHANG, Xujian WANG, Di YIN, Lingda YU, Zhi LIU, Shujun WEI, Junhui YUE, Jianshe CAO. Sensitivity estimation for beam position monitors using a boundary element method[J]. NUCLEAR TECHNIQUES, 2023, 46(5): 050404
Category: Research Articles
Received: Oct. 16, 2022
Accepted: --
Published Online: Jun. 30, 2023
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