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Proceedings Paper

Instrument For Angle-Resolved Measurement Of Scattered Light In The VUV-Visible Wavelength Region
Author(s): Lars Mattsson
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Paper Abstract

A high vacuum instrument for angle-resolved scattering studies in the 30 nm - 633 nm wavelength region has been built. Scattering can be measured at nearly all angles, not only in the plane of incidence, but also out of the incident plane by mounting the detectors on a trolley on a semi-circular rotatable arm. The sample is mounted on an XYZ-translator which also allows the angle of incidence to be continuously varied from 0 to 900. Three inter-changable detectors, two PM-tubes and one channel electron multiplier cover the complete wavelength region of interest. The spherical geometry of the detection system assures that the same part of the detector surface is used at all detection positions. Because of its flexible detector and sample positioning system, the instrument also provides an easy-to-use reflectance and transmittance measurement system. The instrument can be adapted to any light source. At present we make use of a resonance light source, A 58.4 nm for the VUV and a HeNe-laser for the visible. Monochromatized mercury and deuterium radiation will soon be provided for the UV and visible regions.

Paper Details

Date Published: 3 September 1985
PDF: 8 pages
Proc. SPIE 0525, Measurement and Effects of Surface Defects & Quality of Polish, (3 September 1985); doi: 10.1117/12.946363
Show Author Affiliations
Lars Mattsson, Uppsala University (Sweden)

Published in SPIE Proceedings Vol. 0525:
Measurement and Effects of Surface Defects & Quality of Polish
Lionel R. Baker; Harold E. Bennett, Editor(s)

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