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使用Nb3Sn线圈的垂直极化超导多极旋转器的建议
Hirotoshi Saito1, Kimichika Tsuchiya1, Chikaori Mitsuda1
1High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.
Journal of synchrotron radiation
|June 17, 2025
概括
我们使用短周期设计和Nb3Sn电线开发了一种垂直极化超导多极旋转器 (V-SC-MPW). 这一创新最大限度地减少了发射量的增长,使得在先进的光源中能够高效地使用垂直极化硬X射线.
科学领域:
- * * 物理学 物理
- * 材料科学 材料科学
- * 加速器物理学
背景情况:
- * 垂直极化硬X射线提供了独特的实验优势,使水平光学设备的安排.
- *以前的高场,垂直极化装置导致光束发射率显著增加,限制了它们在第三代光源中的使用.
- * 超导体插入装置对于在现代同步子中产生高磁场至关重要.
研究的目的:
- * 提出和评估一种新的垂直极化超导多极波动器 (V-SC-MPW) 设计.
- * 克服与垂直偏振,高场X射线生成相关的发射量增长问题.
- *为了证明V-SC-MPW在未来的光源PF-HLS中的可行性.
主要方法:
- * 设计一个使用Nb3Sn超导线的短周期V-SC-MPW.
- * 为拟议的摇摆器进行磁场计算和模拟.
- * 在PF-HLS中集成的V-SC-MPW的发行量增长分析.
主要成果:
- *使用Nb3Sn线的短周期设计允许高磁场 (2.44 T) 与减少周期长度 (85 mm).
- *V-SC-MPW在2.5GeV光束能量下实现了54μm的可行的轨道振幅.
- *计算的发射率增长是最小的:15.6 pm·rad (水平) 和1.0 pm·rad (垂直).
结论:
- * 短周期V-SC-MPW有效地降低了发射量增长,解决了垂直极化X射线的一个关键限制.
- * 这种装置是一个有前途的插入,用于在低发射,中等能量环中利用垂直极化硬X射线.
- * V-SC-MPW技术促进了先进的实验设置,此前由于光束质量下降而受到阻碍.
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