Ptychographic imaging for the characterization of X-ray free-electron laser beams
We present some preliminary results from a study aimed at the characterization of the wavefront of X-ray free electron laser (XFEL) beams in the same operation conditions as for single particle imaging (or flash X-ray imaging) experiments. The varying illumination produced by wavefront fluctuations...
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Published in | Journal of physics. Conference series Vol. 849; no. 1; pp. 12032 - 12035 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Bristol
IOP Publishing
01.06.2017
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Subjects | |
Online Access | Get full text |
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Summary: | We present some preliminary results from a study aimed at the characterization of the wavefront of X-ray free electron laser (XFEL) beams in the same operation conditions as for single particle imaging (or flash X-ray imaging) experiments. The varying illumination produced by wavefront fluctuations between several pulses leads to a partially coherent average beam which can be decomposed into several coherent modes using ptychographic reconstruction algorithms. Such a decomposition can give insight into pulse-to-pulse variations of the wavefront. We discuss data collected at the Linac Coherent Light Source (LCLS) and FERMI. |
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ISSN: | 1742-6588 1742-6596 |
DOI: | 10.1088/1742-6596/849/1/012032 |