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Flame Photometry: Lab

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In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...

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Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite

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Photographic coronagraph, Skylab particulate experiment T025.

F Giovane, D W Schuerman, J M Greenberg

|February 20, 2010

Summary

This summary is machine-generated.

A photographic coronagraph detected an aerosol layer at 48 km altitude. This discovery occurred despite equipment failures during Skylab

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Area of Science:

Space science and atmospheric research.

Background:

A photographic coronagraph was developed for Skylab to monitor extravehicular contamination.
The instrument's versatility allowed for observations of Earth's atmosphere and Comet Kohoutek.

Purpose of the Study:

To describe the photographic coronagraph and its operational deployment.
To document observations of Earth's vertical aerosol distribution and Comet Kohoutek.

Main Methods:

The coronagraph was designed for solar airlock deployment but modified for extravehicular activity (EVA).
Observations were attempted during four EVAs, utilizing a Skylab operational camera.

Main Results:

Most observational data was compromised due to the failure of the Skylab operational camera.
A previously undetected aerosol layer was identified at an altitude of 48 km in the southern hemisphere.

Conclusions:

Despite significant technical challenges and data loss, the coronagraph successfully identified a high-altitude aerosol layer.
The findings highlight the potential of specialized instruments for atmospheric research even under adverse conditions.