New diamond cell for single-crystal x-ray diffraction

Journal Article · Wed Nov 15 04:00:00 UTC 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2372734· OSTI ID:20861501

Boehler, Reinhard ^[1]

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1. 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, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 77; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
APERTURES
BERYLLIUM
DESIGN
DIAMONDS
HELIUM
LASER-RADIATION HEATING
MONOCRYSTALS
PISTONS
PRESSURE RANGE GIGA PA
STEELS
THICKNESS
TUNGSTEN CARBIDES
X RADIATION
X-RAY DIFFRACTION
X-RAY DIFFRACTOMETERS