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Pressure distribution in a large-anvil pressure cell

DOI: 10.1016/S0925-8388(03)00568-1
Title: Pressure distribution in a large-anvil pressure cell
Journal Title: Journal of Alloys and Compounds
Volume: 362
Publication Date: 14 January 2004
Start Page: 96
End Page: 98
Published online: online 1 August 2003
ISSN: 0925-8388
Author: W. Paszkowicza, W. Szuszkiewicza, E. Dynowskaa, J.Z. Domaga?aa, C. Latheb

  • a Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland

  • b GeoForschungsZentrum Potsdam, Telegrafenberg A17, D-14473 Potsdam, Germany
  • Abstract: ng the pressure gradients in large-anvil pressure cells is one of conditions for getting the high-quality results in investigations of structural and physical properties of the solid state. Pressure or temperature distributions in such devices are usually studied by scanning the sample with finely collimated X-ray beam. The previously reported pressure and temperature distributions in diamond anvil cells as well as temperature distributions in large-anvil cells, exhibit a strong dependence on materials of the sample environment and on the construction of sample assembly (data for pressure distribution in large-anvil cells were not available in literature). Present experiments were performed in energy-dispersive mode at MAX80 X-ray diffraction press installed at F2.1 beamline (Hasylab). The pressure distribution along the z-axis of a cylindrical NaCl sample mounted within a graphite heater embedded in a boron-epoxy cube was derived from the energetical positions of the 002 reflection along the sample scanned with white collimated X-ray beam. The pressure is found to be constant along the z-axis.
    Accepted: 25 January 2003
    Received: 15 December 2002
    Revised: 21 January 2003
    Keywords: Elasticity; Strain; High pressure; Synchrotron radiation; X-ray and γ-ray spectroscopies
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