Correction of Spherical Aberration in Grazing-Incidence X-ray Optics by Combination of Spherical-Concave Mirrors

Journal Article · Fri Sep 09 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3625328· OSTI ID:21608275

Suzuki, Y; Takeuchi, A ^[1]

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1. Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Koto 1-1-1, Sayo, Hyogo 679-5198 (Japan)

In grazing-incidence total-reflection mirror optics for x-rays, spherical aberrations and coma are the most serious aberrations for microfocusing and microimaging. High-resolution imaging is believed to be possible only when an aspherical mirror system is used. However, the spherical aberrations of a spherical-concave mirror in a grazing-incidence condition can be eliminated by sequential reflection of spherical mirrors of similar shapes. A sub-micrometer one-dimensional focusing is easily achieved by the spherical-aberration-corrected tandem-spherical mirror optics. By configuring four spherical mirrors in an analogy of the crossed mirror optics (Kirkpatrick-Baez optics), it is possible to achieve sub-micrometer focused beam size in the hard x-ray region. Preliminary experiments on x-ray microfocusing have been carried out at beamline 20XU of SPring-8, and a 0.5 {mu}mx0.4 {mu}m beam size was achieved at 8 keV.

• OSTI ID: 21608275
• Journal Information: AIP Conference Proceedings, Vol. 1365, Issue 1; Conference: 10. international conference on X-ray microscopy, Chicago, IL (United States), 15-20 Aug 2010; Other Information: DOI: 10.1063/1.3625328; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
07 ISOTOPES AND RADIATION SOURCES
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KEV RANGE
MICROSCOPY
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PHOTON BEAMS
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