GHz Ultrasonic Interferometry

The GHz Ultrasonic Interferometry is used to determine the sound wave velocities of minerals at high pressure in a diamond anvil cell. Because GHz Interferometry does not use any optical component, this method is applicable especially for opaque minerals such like magnetite, franklinite or magnesiow├╝stite.

To know more about GHz Interferometry see: Spetzler et al., Pure and Applied Geophysics, 141 (1993) Reichmann et al., American Mineralogist, 83 (1998)

Fig.: Diamond anvil cell (DAC) in front of an oscilloscope. Under the DAC the ultrasonic attachment with the ZnO transducer visible, which generates sound waves in the Gigahertz region.

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