The 67th JSAP Spring Meeting 2020

Presentation information

Oral presentation

8 Plasma Electronics » 8.1 Plasma production and diagnostics

[12p-A302-1~18] 8.1 Plasma production and diagnostics

Thu. Mar 12, 2020 1:15 PM - 6:00 PM A302 (6-302)

Kentaro Tomita(Kyushu Univ.), Nakagawa Yusuke(首都大), Manabu Tanaka(Kyushu Univ.)

4:30 PM - 4:45 PM

[12p-A302-13] Measurement of friction force acting on charged microparticles in DC glow discharges

Kenji Furuya1 (1.Kyushu Univ.)

Keywords:Coulomb crystal, microparticle, friction

We have developed a new equipment for observing Coulomb crystals in DC glow discharges. This equipment has an advantage that there is a large free space region surrounding the crystal region, and it is possible to control the position of the crystal in the free space region. We then made the charged particles falling down in the free space region and measured the time dependence of the falling velocity of the charged particles. As a result, friction force acting on the particles was estimated experimentally.

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