Large Ion

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Large Ion

</dt>
An atmospheric ion of relatively large mass and low mobility which is produced by the attachment of a small ion to an Aitken nucleus. Also called slow ion, heavy ion, Langevin ion. </dd>
The ion density of large ions varies widely, depending upon the degree of atmospheric pollution. Representative low-altitude values might be 1000 per cubic centimeter in clean country air, 10,000 per cubic centimeter in an industrial area, and 100 per cubic centimeter over the oceans. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use