论文标题
通过角度分散诱导的微型构成方案，在低排放电子存储环中产生的极端明亮的相干同步辐射
Extreme bright coherent synchrotron radiation produced in a low emittance electron storage ring by the angular dispersion induced microbunching scheme
论文作者
论文摘要
在短波长范围内产生极端明亮的相干同步辐射，这是对同步加速器光源社区的引人注目的。在本文中，采用了一种新型技术来产生连贯的辐射，该辐射使用角度分散体来通过少量的能量调制来增强微束。该方案可以插入存储环的长截面。本文介绍了具有3.5 GEV能量的极低发射量环的晶格设计，该戒指采用了高阶Achromat（HOA）概念。我们在约900米的圆周中显示了多弯曲achromat（MBA）晶格的设计结果。数值模拟表明，这种角度分散诱导的微束方案可用于在软X射线区域附近产生相干辐射，重复速率可以达到10 kHz，并且光谱亮度可以达到3*10^24phs/s/mm^2/mrad^2/mrad^2/0.1％bw。
Generation of extreme bright coherent synchrotron radiation in a short wavelength range is of remarkable interest in the synchrotron light source community. In this paper, a novel technique is adopted to produce the coherent radiation which uses an angular dispersion to enhance the micro-bunch by a tiny amplitude of energy modulation. This scheme can be inserted in a long straight section of a storage ring. A lattice design of an extreme-low emittance storage ring with 3.5 GeV energy is presented in this paper, which employs a higher order achromat (HOA) concept. We show the design results for the multi-bend achromat (MBA) lattice with an emittance of 20 pm-rad in about 900-meter circumference. Numerical simulations demonstrated that this angular dispersion induced micro-bunch scheme can be used to generate coherent radiation near soft x-ray region, the repetition rate can reach 10 kHz and the spectral brightness can reach 3*10^24phs/s/mm^2/mrad^2/0.1%BW.
