Physics of hard spheres experiment: a general-purpose light-scattering instrument

被引：15
|
作者：
Lant, CT
Smart, AE
Cannell, DS
Meyer, WV
Doherty, MP
机构：
[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106
[2] NASA,LEWIS RES CTR,OHIO AEROSP INST,CLEVELAND,OH 44135
来源：
APPLIED OPTICS | 1997年 / 36卷 / 30期
关键词：
light scattering; hard sphere; Bragg scattering; dynamic light scattering; quasi-elastic light scattering; crystal growth; microgravity; colloidal crystal;
D O I：
10.1364/AO.36.007501
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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 degrees to 60 degrees, dynamic and static light scattering from 10 degrees to 170 degrees, 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. (C) 1997 Optical Society of America.
引用
收藏
页码：7501 / 7507
页数：7
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