Simulation of concave–convex imaging mirror system for development of a compact and achromatic full-field x-ray microscope

Yamada, Jumpei; Matsuyama, Satoshi; Sano, Yasuhisa; Yamauchi, Kazuto

doi:10.1364/ao.56.000967

Cited by 16 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Combined KB-Wolter systems were proposed [45] and realized [46] for applications at synchrotron and x-ray free-electron laser sources. More advanced systems are under consideration [47] for full-field spectroscopy applications. Such KB-Wolter systems can be used as the aberration-free focusing element F of the defocusing system of the x-ray echo spectrometers.…”

Section: B Aberration-free Opticsmentioning

confidence: 99%

Theory and optical design of x-ray echo spectrometers

Shvyd’ko

2017

Phys. Rev. A

View full text Add to dashboard Cite

X-ray echo spectroscopy, a space-domain counterpart of neutron spin-echo, is a recently proposed inelastic x-ray scattering (IXS) technique. X-ray echo spectroscopy relies on imaging IXS spectra, and does not require x-ray monochromatization. Due to this, the echo-type IXS spectrometers are broad-band, and thus have a potential to simultaneously provide dramatically increased signal strength, reduced measurement times, and higher resolution compared to the traditional narrowband scanning-type IXS spectrometers. The theory of x-ray echo spectrometers presented in [1] is developed here further with a focus on questions of practical importance, which could facilitate optical design and assessment of the feasibility and performance of the echo spectrometers. Among others, the following questions are addressed: spectral resolution, refocusing condition, echo spectrometers tolerances, refocusing condition adjustment, effective beam size on the sample, spectral window of imaging and scanning range, the impact of the secondary source size on the spectral resolution, the angular dispersive optics, the focusing and collimating optics, etc. Examples of optical designs and characteristics of echo spectrometers with 1-meV and 0.1-meV resolutions are presented.

show abstract

Section: B Aberration-free Opticsmentioning

confidence: 99%

Theory and optical design of x-ray echo spectrometers

Shvyd’ko

2017

Phys. Rev. A

View full text Add to dashboard Cite

show abstract

“…Details of the detector configurations were described in Section 3.2. For the focusing, advanced Kirkpatrick-Baez mirror optics based on the Wolter type III geometry [40,41] were exploited, which were developed for the nanofocusing of X-ray free-electron laser (XFEL) pulses [28]. The mirrors had an NA of 0.01 and were designed for focusing at 9.1 keV.…”

Section: Methodsmentioning

confidence: 99%

X-Ray Single-Grating Interferometry for Wavefront Measurement and Correction of Hard X-Ray Nanofocusing Mirrors

Yamada

Inoue

Nakamura

et al. 2020

Sensors

Self Cite

View full text Add to dashboard Cite

X-ray single-grating interferometry was applied to conduct accurate wavefront corrections for hard X-ray nanofocusing mirrors. Systematic errors in the interferometer, originating from a grating, a detector, and alignment errors of the components, were carefully examined. Based on the measured wavefront errors, the mirror shapes were directly corrected using a differential deposition technique. The corrected X-ray focusing mirrors with a numerical aperture of 0.01 attained two-dimensionally diffraction-limited performance. The results of the correction indicate that the uncertainty of the wavefront measurement was less than λ/72 in root-mean-square value.

show abstract

“…This demonstration reveals the feasibility of developing a practical and high-resolution full-field microscope for X-rays with energy approximately equal to 20 keV. In the future, we plan to construct a full-field microscope system based on new AKB optics with concave and convex mirrors [3] .…”

mentioning

confidence: 87%