Articles | Volume 39, issue 3
https://doi.org/10.5194/angeo-39-533-2021
https://doi.org/10.5194/angeo-39-533-2021
Regular paper
 | 
15 Jun 2021
Regular paper |  | 15 Jun 2021

A comparison of contact charging and impact ionization in low-velocity impacts: implications for dust detection in space

Tarjei Antonsen, Ingrid Mann, Jakub Vaverka, Libor Nouzak, and Åshild Fredriksen

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Latest update: 18 Jun 2024
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Short summary
This paper discusses the charge generation for impacts of nano- to micro-scale dust on metal surfaces at speeds below a few kilometres per second. By introducing a model of capacitive coupling between the dust and the impact surface, we find that at such low speeds, the charge can be dominated by contact charging as opposed to plasma generation.