Acquisition of Instrumentation for Shock Wave Facility

该合同为芝加哥大学地球物理科学系装备一个新的冲击波研究设施提供资金。该合同涵盖的设备包括高速数字计数器、脉冲发生器、高速扫描相机、脉冲氙频闪和示波器。该设备将用于研究在地幔压力和温度范围内结晶和无定形硅酸盐材料的物理性质。特别是，第一个应用将是确定硅酸盐液体的状态方程与其化学组成的系统相关性。这些数据对于理解地球内部深部熔岩的浮力和地球在历史上通过岩浆作用而发生的分化至关重要。

This award provides funds to equip a new shock-wave research facility to be installed in the Department of Geophysical Sciences at the University of Chicago. Equipment covered by this award includes high-speed digital counters, pulse generators, high-speed streak camera, pulsed xenon strobe, and an oscilloscope. The facility will be used in studies of the physical properties of crystalline and amorphous silicate materials under the pressure and temperature range of the Earth's mantle. In particular, the first application will be to determine the systematic dependence of the equation of state of silicate liquids on their chemical composition. Such data are crucial to an understanding of the buoyancy of melts in the deep interior and the differentiation of the Earth via magmatic processes during its history.