Lingling Gong , Xiaoyu Li , Qing Guo , Yuhui Li , Huihua Lu
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引用次数: 0
Abstract
The stretched wire system was widely employed in the development of insertion devices for HEPS, owing to its capability for rapid, high-precision, and efficient magnetic field integral measurements. However, the alignment accuracy of the wire remains a critical factor influencing the precision of these measurements. Traditional mechanical alignment methods are insufficient for high-precision requirements, as they cannot compensate for the inherent offset between the mechanical and magnetic centers. To address this limitation, this paper proposes two novel magnetic alignment methods based on theoretical analysis and experimental research. The first method was tailored for measuring single magnetic blocks. By evaluating the magnetic field integral with the block positioned in specific orientations, this method effectively eliminated measurement biases caused by angular deviations between the wire and the magnetic block, significantly improving measurement accuracy. The second method was designed for entire insertion devices. It introduced an innovative approach utilizing attached iron slices to generate a new reference signal, thereby reducing measurement biases between the Hall and stretched wire systems and enhancing the reliability of overall performance assessments. These magnetic alignment methods offered an efficient and innovative solution to improve the precision of magnetic field integral measurements at HEPS.
期刊介绍:
Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section.
Theoretical as well as experimental papers are accepted.