软X射线自种子自由电子激光的实验演示
Experimental demonstration of a soft x-ray self-seeded free-electron laser.
作者信息
Ratner D, Abela R, Amann J, Behrens C, Bohler D, Bouchard G, Bostedt C, Boyes M, Chow K, Cocco D, Decker F J, Ding Y, Eckman C, Emma P, Fairley D, Feng Y, Field C, Flechsig U, Gassner G, Hastings J, Heimann P, Huang Z, Kelez N, Krzywinski J, Loos H, Lutman A, Marinelli A, Marcus G, Maxwell T, Montanez P, Moeller S, Morton D, Nuhn H D, Rodes N, Schlotter W, Serkez S, Stevens T, Turner J, Walz D, Welch J, Wu J
机构信息
SLAC National Accelerator Laboratory, Menlo Park, California 94720, USA.
Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
出版信息
Phys Rev Lett. 2015 Feb 6;114(5):054801. doi: 10.1103/PhysRevLett.114.054801.
The Linac Coherent Light Source has added a self-seeding capability to the soft x-ray range using a grating monochromator system. We report the demonstration of soft x-ray self-seeding with a measured resolving power of 2000-5000, wavelength stability of 10(-4), and an increase in peak brightness by a factor of 2-5 across the photon energy range of 500-1000 eV. By avoiding the need for a monochromator at the experimental station, the self-seeded beam can deliver as much as 50-fold higher brightness to users.
直线加速器相干光源利用光栅单色仪系统在软X射线波段增加了自种子注入功能。我们报告了软X射线自种子注入的演示，测量得到的分辨能力为2000 - 5000，波长稳定性为10^(-4)，并且在500 - 1000电子伏特的光子能量范围内，峰值亮度提高了2 - 5倍。通过无需在实验站设置单色仪，自种子注入光束可为用户提供高达50倍的更高亮度。
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