4.6 Article

Simulation of X- ray Hartmann wavefront sensing with the Synchrotron Radiation Workshop

期刊

OPTICS EXPRESS
卷 30, 期 23, 页码 41061-41074

出版社

Optica Publishing Group
DOI: 10.1364/OE.470197

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资金

  1. Office of Science [DE-SC0012704, FWP PS-017]
  2. National Energy Research Scientific Computing Center [DE-AC02-05CH11231, ERCAP0018727]

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X-ray wavefront measurement is an important tool for beam diagnostics, and Hartmann wavefront sensing is a promising technique for in situ measurements. In this study, a simulation tool for X-ray Hartmann Wavefront Sensor (HWS) is developed under the SRW framework. This tool can optimize wavefront sensor parameters and predict measurement results under different beamline configurations.
X-ray wavefront measurement is an important beam diagnostic tool, especially for the diffraction-limited X-ray beam. These in situ diagnostics give a better understanding of beam imperfections, and they enable feedback for possible corrections and/or optical alignment improvements. Hartmann wavefront sensing is one of the promising techniques to perform in situ X-ray wavefront measurements. In this work, a simulation tool of the X-ray Hartmann Wavefront Sensor (HWS) is developed under the Synchrotron Radiation Workshop (SRW) framework. Using this new simulation capability, one can take advantage of the full SRWpackage to simulate Hartmann wavefront sensing with the beam traveling from the X-ray source to the sample through different X-ray optical components. This SRW HWS simulation tool can help to optimize the wavefront sensor parameters for a specific X-ray energy range. It can also simulate an in situ wavefront measurement experiment with a particular beamline optical layout and predict the expected results of the wavefront measurement under different beamline configurations.

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