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Characteristics of the Synchrotron Radiation of Fourth-Generation Storage Rings
Journal of the Korean Physical Society ( IF 0.6 ) Pub Date : 2020-09-01 , DOI: 10.3938/jkps.77.363
Jinjoo Ko , Bonghun Oh , Seunghwan Shin , Jaeyu Lee , Gyeongsu Jang , Moohyun Yoon

Fourth-generation storage rings (4GSR) based on multi-bend achromat (MBA) lattices promise to deliver stable X-ray beams with higher brightness and coherence than existing third-generation light sources. The basic ingredient in achieving higher brightness is a further reduction of the electron beam emittance in storage rings dedicated to light sources. These 4GSR lattices can lead to 1 to 2 orders of magnitude reductions in the beam emittance by employing a MBA, where many dipoles per cell are used to keep the dispersion function low inside the dipoles. Moreover, these low emittance beams are transported to the beam-line through the insertion device or center-bend, which is a permanent magnet with a 2 T magnetic field. In this paper, we will introduce the characteristics of the synchrotron radiation of 4GSR compared to present third-generation sources, PLS-II.

中文翻译:

第四代存储环的同步辐射特性

基于多弯曲消色差 (MBA) 晶格的第四代存储环 (4GSR) 有望提供比现有第三代光源更高亮度和相干性的稳定 X 射线束。实现更高亮度的基本要素是进一步降低专用于光源的存储环中的电子束发射率。通过使用 MBA,这些 4GSR 晶格可以使光束发射率降低 1 到 2 个数量级,其中每个单元使用许多偶极子来保持偶极子内部的低色散函数。此外,这些低发射光束通过插入装置或中心弯曲传输到光束线,插入装置或中心弯曲是具有 2 T 磁场的永磁体。在本文中,
更新日期:2020-09-01
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