Pressure Distribution Measurements in Fixed-Anvil High-Pressure Cells

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Science  29 May 1964:
Vol. 144, Issue 3622, pp. 1119-1121
DOI: 10.1126/science.144.3622.1119


Absorption spectra of selected microsections of materials with pressure-sensitive absorption bands mounted in diamond-anvil high-pressure cells were determined. The shift in the absorption peak, combined with data obtained at uniform pressure, permits calculation of the pressure of the microsection selected. Examples of a parabolic decrease in pressure from the center to the edge of the diamond anvil are demonstrated by contour diagrams.

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