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Updated: Jun 16, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

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Solar XUV grazing incidence spectrograph on Skylab.

D L Garrett, R Tousey

|February 20, 2010

Summary

Skylab S020 obtained solar extreme ultraviolet and soft X-ray spectra using a novel spectrograph. Despite mission challenges and reduced sensitivity from contamination, valuable spectral data was acquired.

Area of Science:

Solar physics
Astronomy
Spectroscopy

Background:

Previous solar spectrum data in the 10-200 Angstrom range was limited.
Skylab missions provided opportunities for extended solar observation.

Purpose of the Study:

To obtain more complete solar extreme ultraviolet (XUV) and soft X-ray spectra.
To analyze the solar spectrum between 10-200 Angstroms using long exposure times.

Main Methods:

Utilized a grazing incidence spectrograph with photographic recording.
Employed a novel split-ruled grating (1200- and 2400-1/mm) for enhanced spectral coverage and analysis.
Leveraged long exposure times afforded by the Skylab mission.

Main Results:

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Last Updated: Jun 16, 2026

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Acquired useful solar spectra in the targeted extreme ultraviolet and soft X-ray range.

Experienced significant reduction in instrument sensitivity.

Identified contamination from the spacecraft cooling system as a probable cause for sensitivity loss.

Conclusions:

The Skylab S020 experiment successfully gathered valuable solar spectral data.
Instrumental challenges, particularly contamination, impacted data quality and sensitivity.
Despite limitations, the study contributed to understanding the sun's XUV and soft X-ray spectrum.