A point‐focusing small angle x‐ray scattering camera using a doubly curved monochromator of a W/Si multilayer
作者:
Yuji Sasanuma,
Robert V. Law,
Yuji Kobayashi,
期刊:
Review of Scientific Instruments
(AIP Available online 1996)
卷期:
Volume 67,
issue 3
页码: 688-692
ISSN:0034-6748
年代: 1996
DOI:10.1063/1.1146841
出版商: AIP
数据来源: AIP
摘要:
A point‐focusing small angle x‐ray scattering (SAXS) camera using a doubly curved monochromator of a W/Si multilayer has been designed, constructed, and tested. The two radii of curvature of the monochromator are 20 400 and 7.6 mm. The reflectivity of its first‐order Bragg reflection for CuK&agr; radiation was calculated to be 0.82, being comparable to that (0.81) of its total reflection. By only 10 s x‐ray exposure, scattering from a high‐density polyethylene film was detected on an imaging plate (IP). A rotating‐anode x‐ray generator operated at 40 kV and 30 mA was used. Diffraction from rat‐tail collagen has shown that the optical arrangement gives the Bragg spacing up to, at least, 30 nm for CuK&agr; radiation. Combined with IPs, the camera may permit us to carry out time‐resolved SAXS measurements for phase behaviors of liquid crystals, lipids, polymer alloys, etc., on conventional x‐ray generators available in laboratories. ©1996 American Institute of Physics.
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