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Transmission grating efficiencies for wavelengths between 5.4 A and 44.8 A.

Authors :
Bräuninger H
Predehl P
Beuermann KP
Source :
Applied optics [Appl Opt] 1979 Feb 01; Vol. 18 (3), pp. 368-73.
Publication Year :
1979

Abstract

Diffraction efficiencies of 44.8-5.4-A x rays by a free-standing gold transmission grating of 1.0-microm period have been measured, using characteristic line radiation. Partial transparency of the grating affects the efficiency at the shorter wavelengths and causes an increase in the efficiencies for orders m>/=1 over the longwavelength values. Model calculations for a trapezoidal wire cross section are in good agreement with the measured efficiencies and allow the wire cross section to be determined. Gratings of this type have a high efficiency for wavelengths as short as 5 A and are, therefore, well suited for applications both in x-ray and extreme uv astronomy.

Details

Language :
English
ISSN :
1559-128X
Volume :
18
Issue :
3
Database :
MEDLINE
Journal :
Applied optics
Publication Type :
Academic Journal
Accession number :
20208721
Full Text :
https://doi.org/10.1364/AO.18.000368