期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 22, 期 -, 页码 599-605出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1600577515004361
关键词
X-ray FEL; speckle; focusing
资金
- Volkswagen Foundation
- DFG [SCHR 1137/1-1]
X-ray focus optimization and characterization based on coherent scattering and quantitative speckle size measurements was demonstrated at the Linac Coherent Light Source. Its performance as a single-pulse free-electron laser beam diagnostic was tested for two typical focusing configurations. The results derived from the speckle size/shape analysis show the effectiveness of this technique in finding the focus' location, size and shape. In addition, its single-pulse compatibility enables users to capture pulse-to-pulse fluctuations in focus properties compared with other techniques that require scanning and averaging.
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