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Secondary Emission from Interplanetary Dust Grains

Published online by Cambridge University Press:  12 April 2016

J.M. Millet  and
J.P. Lafon
J.M. Millet
Affiliation:
Université de Provence, Laboratoire d’Astronomie Spatiale, Marseille
J.P. Lafon
Affiliation:
DESPA, Observatoire de Meudon

Abstract

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Secondary emission can play an important role in the charging of dust grains. This process is very sensitive to their size and to the physical properties of the solid. It is particulary important in the case of insulators in which an intense electric field is present at the surface and can accelerate the excited electrons.

As a consequence, the secondary emission yield δ does not depend on the energy of primaries and multiple solutions of the potential due to the usual non-monotonic form of δ versus the energy of primaries disappear.

Type
VI. Dust – Plasma Interactions
Information
International Astronomical Union Colloquium , Volume 85: Properties and Interactions of Interplanetary Dust , 1985 , pp. 347 - 350
Copyright
Copyright © Reidel 1985

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