Wave-optical simulations for designing and evaluating hard x-ray reflective optics

Mimura, Hidekazu; Matsuyama, Satoshi; Yumoto, Hirokatsu; Handa, Soichiro; Shibatani, Akio; Katagishi, Keiko; Sano, Yasuhisa; Nishino, Yoshinori; Yabashi, Makina; Tamasaku, Kenji; Ishikawa, Tetsuya; Yamauchi, Kazuto

doi:10.1117/12.681944

Cited by 1 publication

(1 citation statement)

References 7 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present results have been of precious help for the redaction of the beamline specifications documents. SRW and Shadowvui are now used to specify the accuracy needed on the different mechanical movements necessary for tuning the nano-focusing mirrors, as it is described by Matsuyama et al and Mimura et al [9,14].…”

Section: Resultsmentioning

confidence: 97%

Simulation and optimization of the NSLS-II SRX beamline combining ray-tracing and wavefront propagation

et al. 2011

View full text Add to dashboard Cite

The Sub-micron Resolution X-ray spectroscopy (SRX) beamline will benefit from the ultralow emittance of the National Synchrotron Light Source II to address a wide variety of scientific applications studying heterogeneous systems at the sub-micrometer scale. This work focuses on the KB branch (ΔE: 4.65-28 keV). Its main optical components include a horizontally focusing mirror forming an adjustable secondary source, a horizontally deflecting monochromator and two sets of Kirkpatrick-Baez mirrors as focusing optics of two distinct inline stations for operations requiring either high flux or high resolution. In the first approach, the beamline layout was optimized with ray-tracing calculations involving Shadowvui computer codes. As a result, the location and characteristics of optics were specified for achieving either the most intense or the smallest monochromatic beam possible on the target (10 13 ph/s or 10 12 ph/s respectively in a 500 nm or 65 nm focal spot). At the nanoprobe station, the diffraction limited focusing of X-rays is governed by the beam coherence. Hence, a classical geometric approach is not anymore adapted. To get reliable estimates of the Nanoprobe performances, a wavefront propagation study was performed using Synchrotron Radiation Workshop (SRW) code. At 7.2 keV, calculations show an intense (10 12 ph/s) 67 nm wide diffraction limited spot achieved with actual metrological data of mirrors.

show abstract

Section: Resultsmentioning

confidence: 97%