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Short focal length Kirkpatrick-Baez mirrors for a hard x-ray nanoprobe
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Image of FIG. 1.
FIG. 1.

A prototype hard x-ray K-B nanofocusing system at the 34-ID-E station of the APS. The beam can be rapidly switched between monochromatic and polychromatic modes.

Image of FIG. 2.
FIG. 2.

Mirror figures measured by LTP. The rms deviation from the ideal ellipse can be even less over smaller regions of the mirror when ignoring the both ends. (a) Vertical mirror; (b) horizontal mirror.

Image of FIG. 3.
FIG. 3.

Nanoprobe mirror tank. The white arrows indicate vertical and horizontal mirrors.

Image of FIG. 4.
FIG. 4.

Patterned gold mask for precise and fast characterization of the beam profile. Either Au fluorescence or the reflected intensity by Au film can be collected. (a) A single Au stripe at glancing angle is equivalent to a wide pseudoslit or reflector. (b) Multiple nanoslits/reflectors were scanned across the beam at every along the beam axis.

Image of FIG. 5.
FIG. 5.

Doubly focused monochromatic nanobeam at . The intensity profiles were obtained by scanning a Au nanoslit/reflector across the beam.

Image of FIG. 6.
FIG. 6.

Vertical vibration spectrum measured by fluorescence correlation function spectroscopy. (a) The amplitude of vibration is on the order of at dominated frequency of . (b) and (c) Smaller focal spot sizes obtained in horizontal by turning off power to the most likely vibration sources.

Image of FIG. 7.
FIG. 7.

Schematic of side-by-side Kirkpatrick-Baez mirrors. Both vertical and horizontal mirrors have identical figures and focal lengths.


Generic image for table
Table I.

Optical parameters of the K-B nanofocusing mirrors.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Short focal length Kirkpatrick-Baez mirrors for a hard x-ray nanoprobe