Smoothing analysis of HLSII storage ring magnets

TL;DR

This paper introduces a new smoothing method based on least squares curve fitting to enhance the alignment accuracy of storage ring magnets, reducing adjustment efforts and improving productivity in synchrotron light source upgrades.

Contribution

A novel smoothing technique tailored for HLSII storage ring magnets using least squares fitting and iterative adjustments, optimizing magnet alignment.

Findings

Reduces magnet adjustment range and effort

Improves alignment accuracy among neighboring magnets

Enhances productivity in storage ring installation

Abstract

In order to improve the quality and stability of synchrotron light, Hefei Light Source has a major upgrade. Higher accuracy is necessary for installation and alignment of the storage ring magnets. It is not necessarily essential that the magnets are positioned exactly. In fact, the aim is to adjust neighboring magnets with a high accuracy to one another; in other words, these neighboring magnets are positioned on a smoothing curve. The paper presents an attempt to develop a reliable smoothing method based on curve fitting of least squares and iteration according to the structure characteristics of HLSII. The method significantly reduces the adjusting amount and range of the storage ring magnets. It improves productivity by a factor of one times.