Physics of Hard Spheres Experiment: a general-purpose light-scattering instrument

摘要

A general-purpose, multifunction light-scattering instrument has been developed at the NASA Lewis Research Center for Space Shuttle and Space Station colloid crystallization and other microgravity experiments. For a single sample, the instrument can measure two-dimensional Bragg scattering from 0.5° to 60°, dynamic and static light scattering from 10°to 170°, the shear modulus of samples before and after crystallization, and digital color images of the sample, A carousel positions any one of eight 3-ml samples into the test position for separate experiments. Program challenges and flight results from the STS-83 Space Shuttle mission are discussed. # 1997 Optical Society of America