Statistics – Applications
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984sciam.250...54j&link_type=abstract
Scientific American (ISSN 0036-8733), vol. 250, April 1984, p. 54-62.
Statistics
Applications
8
Diamonds, Earth Core, Environment Simulation, High Pressure, Hydraulic Equipment, Anvils, Iodine, Laser Applications, Planetary Structure, Pressure Distribution
Scientific paper
The design, operation, and applications of a device which can squeeze samples to a pressure of up to 100,000 atm are discussed. Diamonds are used as anvils, and their transparency allows fine optical measurements to be made on the properties of the sample material. The fluorescence of a ruby under pressure is used to determine the pressure level in the cell. Experimental applications of the device include the determination of the vibrational frequency of interatomic bonds in a sample by Raman scattering, and the study of acoustic waves in a sample by Brillouin scattering. The study of silicates at high pressure gives information on the interior of the earth, and investigation of the behavior of hydrogen and helium at high pressures, including their metallization, provides insight into the interiors of giant planets and has important implications for superconductor technology.
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