Abstract
A new facility for high-pressure diffraction and spectroscopy using diamond anvil high-pressure cells has been built at the Advanced Light Source on beamline 12.2.2. This beamline benefits from the hard X-radiation generated by a 6 T superconducting bending magnet (superbend). Useful X-ray flux is available between 5 keV and 35 keV. The radiation is transferred from the superbend to the experimental enclosure by the brightness-preserving optics of the beamline. These optics are comprised of a plane parabola collimating mirror, followed by a Kohzu monochromator vessel with Si(111) crystals (E/ΔE ≃ 7000) and W/B4C multilayers (E/ΔE ≃ 100), and then a toroidal focusing mirror with variable focusing distance. The experimental enclosure contains an automated beam-positioning system, a set of slits, ion chambers, the sample positioning goniometry and area detector (CCD or image-plate detector). Future developments aim at the installation of a second endstation dedicated to in situ laser heating and a dedicated high-pressure single-crystal station, applying both monochromatic and polychromatic techniques.
| Original language | English |
|---|---|
| Pages (from-to) | 650-658 |
| Number of pages | 9 |
| Journal | Journal of Synchrotron Radiation |
| Volume | 12 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Sept 2005 |
| Externally published | Yes |
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