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Research Paper

Applied Science and Convergence Technology 2024; 33(3): 67-71

Published online May 30, 2024


Copyright © The Korean Vacuum Society.

Utilization of Plasma Source for Simulating Lunar Surface Charge Environment

Seungsoo Park*

Department of Future & Smart Construction Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Republic of Korea

Correspondence to:ssglenpark@kict.re.kr

Received: April 16, 2024; Revised: May 23, 2024; Accepted: May 24, 2024

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, distribution and reproduction in any medium without alteration, provided that the original work is properly cited.


The lunar surface, subjected to solar radiation, solar wind, and Earth’s plasma, experiences dynamic charging phenomena. The precise replication of these conditions is imperative for human-crewed lunar missions to mitigate potential hazardous interactions between the lunar electrostatic environment and astronauts, rovers, and other equipment. In this study a plasma source has been implemented to emulate lunar surface charging environments. Various plasma sources were considered, and a plasma source assembly capable of modifying the plasma diffusion angle and position was introduced. Furthermore, plasma diagnostics were performed to measure plasma potential, ion and electron density, and electron temperature, with a comparative analysis conducted against the actual lunar surface plasma.

Keywords: Moon, Lunar surface charging, Vacuum chamber, Plasma source, Langmuir diagnostics

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