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

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

doi:https://doi.org/10.5194/angeo-39-533-2021

Articles | Volume 39, issue 3

https://doi.org/10.5194/angeo-39-533-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-39-533-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 39, issue 3

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

Data sets

Replication Data for: Multi-scale Measurements of Mesospheric Aerosols and Electrons During the MAXIDUSTY campaign Tarjei Antonsen, Ove Havnes, and Andres Spicher https://doi.org/10.18710/N8GF1U

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.