New developments in micro-X-ray diffraction and X-ray absorption spectroscopy for high-pressure research at 16-BM-D at the Advanced Photon Source | Zendy

Changyong Park | Zendy; Dmitry Popov | Zendy; Daijo Ikuta | Zendy; Chuanlong Lin | Zendy; Curtis KenneyBenson | Zendy; Eric Rod | Zendy; Arunkumar Bommannavar | Zendy; Guoyin Shen | Zendy

Open Access

New developments in micro-X-ray diffraction and X-ray absorption spectroscopy for high-pressure research at 16-BM-D at the Advanced Photon Source

Author(s) -

Changyong Park,

Dmitry Popov,

Daijo Ikuta,

Chuanlong Lin,

Curtis KenneyBenson,

Eric Rod,

Arunkumar Bommannavar,

Guoyin Shen

Publication year - 2015

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4926893

Subject(s) - monochromator , xanes , beamline , optics , materials science , absorption (acoustics) , diffraction , synchrotron , x ray spectroscopy , advanced photon source , x ray detector , x ray optics , x ray , spectroscopy , absorption spectroscopy , full width at half maximum , physics , detector , wavelength , beam (structure) , quantum mechanics

The monochromator and focusing mirrors of the 16-BM-D beamline, which is dedicated to high-pressure research with micro-X-ray diffraction (micro-XRD) and X-ray absorption near edge structure (XANES) (6-45 keV) spectroscopy, have been recently upgraded. Monochromatic X-rays are selected by a Si (111) double-crystal monochromator operated in an artificial channel-cut mode and focused to 5 μm × 5 μm (FWHM) by table-top Kirkpatrick-Baez type mirrors located near the sample stage. The typical X-ray flux is ∼5 × 10(8) photons/s at 30 keV. The instrumental resolution, Δq/qmax, reaches to 2 × 10(-3) and is tunable through adjustments of the detector distance and X-ray energy. The setup is stable and reproducible, which allows versatile application to various types of experiments including resistive heating and cryogenic cooling as well as ambient temperature compression. Transmission XANES is readily combined with micro-XRD utilizing the fixed-exit feature of the monochromator, which allows combined XRD-XANES measurements at a given sample condition.

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