New diamond cell for single-crystal x-ray diffraction
- Max-Planck Institut fuer Chemie, Postfach 3060, D-55020 Mainz (Germany)
A new design for a high-precision diamond cell is described. Two kinematically mounted steel disks are elastically deflected to generate pressure. This principle provides higher precision in the diamond anvil alignment than most sliding piston-cylinder or guide-pin devices at significantly lower cost. With this new diamond cell conical diamond anvils with an x-ray aperture of 85 degree sign were successfully tested to over 50 GPa using helium as a pressure medium. Anvil thickness of less than 1.4 mm provides high x-ray transmission and low background, a significant improvement compared to beryllium or diamond-disk backing plates. Because the diamond anvils are supported by tungsten carbide seats, samples and pressure media can be annealed by external or laser heating to provide hydrostatic pressure conditions.
- OSTI ID:
- 20861501
- Journal Information:
- Review of Scientific Instruments, Vol. 77, Issue 11; Other Information: DOI: 10.1063/1.2372734; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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