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一、前言同步辐射光束线的任务是将光束引到实验区,并将其“单色化”,取出所需波长的单色光,提供不同用户使用。因此,光束线在光学方面要完成的工作主要有:1.截取所需的光束并根据要求将其分成若干路。同步辐射是一个扁平的光束,在轨道平面内光束发散角约几十个毫弧度,在垂直于轨道的平面内约几个毫弧度。实际使用时,在满足光通量要求的情况下,并不需要这么大的光束,故光束线的前端区都配置有分光镜,由它截取所需光束,并将全光束分成几路。一般情况下,一条光束线均包含有二一四块分光镜。2.“单色化”:经过专门配置的单色仪,使输出的光变成用户所要求的单色光,对此单
I. Introduction Synchrotron radiation beam line task is to lead the beam to the experimental area, and its “monochromatic”, remove the desired wavelength of monochromatic light, to provide different users. Therefore, the optical beam line to be completed in the optical work are: 1. Intercept the required beam and divided into several roads on request. Synchrotron radiation is a flat beam with a beam divergence of tens of milliradians in the orbital plane and a few milliradians in the plane perpendicular to the orbit. In actual use, in order to meet the luminous flux requirements of the case, does not require such a large beam, so the front end of the beam line is equipped with a beam splitter, which intercepts the desired beam, and the beam split into a few. Under normal circumstances, a beam line contains two one four beam splitter. 2. “Monochrome”: Specially configured monochromator, so that the light output into the user’s request monochromatic light, this single