Split and Delay system(SnD)

The design configuration uses a series of Si(220) crystal reflections in the horizontal scattering geometry. It covers an energy range between 6.5 and 13 keV, a delay range from -30 ps up to 500 ps at 8 keV.

Figure 1. Overall system schematics showing the primary in plane motion degrees of freedom and the positioning of intensity and profile diagnostics.

Pointing Stability (2017.09.06)

• Granite table length: 2.4 m
• Enclosure length: 2.5 m
• Distance between 2 diamond windows: 3.22(1) m.

Webcams

• webcam-snd-tent (172.43.21.135): webcam hanging from the ceiling of the HEPA filter tent looking down.
• webcam-snd-alignment (172.43.21.173): webcam mounted on the upstream side of the enclosure looking downstream. This webcam sees the helium concentration monitor.

Diling Zhu; Yanwen Sun; Donald W. Schafer; Hongliang Shi; Justin H. James; Karl L. Gumerlock; Ted O. Osier; Randy Whitney; Lin Zhang; Josep Nicolas; Brian Smith; Andrew H. Barada; Aymeric Robert "Development of a hard x-ray split-delay system at the Linac Coherent Light Source" Proc. SPIE 10237 102370R (2017) doi: 10.1117/12.2265171