The Hefei Advanced Light Facility (HALF) is a vacuum ultraviolet (VUV) and X-ray diffraction-limited storage ring light source. Because of its extremely small dynamic aperture, an injection scheme with a nonlinear kicker (NLK) was considered for the HALF. This magnet was designed with ferrite cores to achieve a higher excitation efficiency and a small gap shield in the central area for a flat magnetic field. In this paper, the design parameters, calculations and measurements of the kicker are described, and further optimization of the magnet structure is discussed.

中文翻译：

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合肥先进轻型设施的一种新型非线性踢腿器

合肥高级照明设施（HALF）是真空紫外（VUV）和X射线衍射受限的存储环光源。由于其动态孔径非常小，因此针对HALF考虑使用带有非线性踢腿（NLK）的喷射方案。该磁体设计有铁氧体磁芯，以实现更高的励磁效率，并在中心区域形成了较小的间隙屏蔽，以产生平坦的磁场。本文介绍了喷射器的设计参数，计算和测量，并讨论了磁体结构的进一步优化。