
Proceedings Paper
LCLS mirror switching of x-ray beamFormat | Member Price | Non-Member Price |
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Paper Abstract
The number of proposals for LCLS science has rapidly increased as all six LCLS x-ray instruments have come online. It
created rising demand on beam time. Statistics shows that only about 25 % of LCLS proposals can be allocated beam
time. One way to increase access is to share the x-ray beam between the different instruments. The purpose of this study
is to quickly switch the x-ray beam between the Matter in Extreme Conditions (MEC) Instrument and the Coherent X-ray
Imaging (CXI) or X-ray Correlation Spectroscopy (XCS) Instruments, in order that two of the instruments can
perform experiments simultaneously. In the most common operational mode, the MEC Instrument uses one x-ray pulse
every 10 minutes, limited by the repetition rate of the high power nanosecond laser system. The MEC M3H mirror steers
the x-ray beam to the MEC Instrument from the XCS or CXI Instruments. If the M3H mirror could switch the x-ray
beam to MEC within a fraction of the 10 minutes waiting time, multiplexing of the x-ray beam would be achieved. The
M3H mirror system has two motion stages for translation and rotation. The long path, 230 m, from the mirror to MEC
hutch makes the pointing resolution 0f 100 microns and stability requirements challenging. The present study
investigates such capabilities by measuring the correlation between the translation speed and the beam pointing
reproducibility. We show that mirror translation can multiplex the LCLS x-ray beam.
Paper Details
Date Published: 30 September 2013
PDF: 7 pages
Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 88490Q (30 September 2013); doi: 10.1117/12.2024663
Published in SPIE Proceedings Vol. 8849:
X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X
Annie Klisnick; Carmen S. Menoni, Editor(s)
PDF: 7 pages
Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 88490Q (30 September 2013); doi: 10.1117/12.2024663
Show Author Affiliations
J. Yin, SLAC National Accelerator Lab. (United States)
D. Zhang, SLAC National Accelerator Lab. (United States)
B. Arnold, SLAC National Accelerator Lab. (United States)
B. Nagler, SLAC National Accelerator Lab. (United States)
D. Zhang, SLAC National Accelerator Lab. (United States)
B. Arnold, SLAC National Accelerator Lab. (United States)
B. Nagler, SLAC National Accelerator Lab. (United States)
H. Lee, SLAC National Accelerator Lab. (United States)
E. Galtier, SLAC National Accelerator Lab. (United States)
P. Heimann, SLAC National Accelerator Lab. (United States)
E. Galtier, SLAC National Accelerator Lab. (United States)
P. Heimann, SLAC National Accelerator Lab. (United States)
Published in SPIE Proceedings Vol. 8849:
X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X
Annie Klisnick; Carmen S. Menoni, Editor(s)
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