Application of the Ball-Pen Probe in Two Low-Temperature Magnetised Plasma Devices and in Torsatron TJ-K

0495038 - ÚFP 2019 RIV DE eng C - Conference Paper (international conference)
Adámek, Jiří - Peterka, Matěj - Gyergyek, T. - Kudrna, P. - Ramisch, M. - Stroth, U. - Cavalier, Jordan - Tichý, M.
Application of the Ball-Pen Probe in Two Low-Temperature Magnetised Plasma Devices and in Torsatron TJ-K.
Contributions to Plasma Physics. Weinheim: Wiley, 2013, s. 39-44. ISSN 0863-1042. E-ISSN 1521-3986.
[9th International Workshop on Electrical Probes in Magnetized Plasmas. Iasi (RO), 21.09.2011-23.09.2011]
R&D Projects: GA ČR GA202/07/0044; GA AV ČR KJB100430901
Institutional support: RVO:61389021
Keywords : Ball-pen probe * Magnetron * Torsatron
OECD category: Fluids and plasma physics (including surface physics)
https://onlinelibrary.wiley.com/doi/abs/10.1002/ctpp.201310007

The ball-pen probe is an innovative electric probe for direct measurements of plasma potential in magnetised hot plasma. This probe is based on the Katsumata probe concept. The ball-pen probe can adjust the ratio I-sat(-)/I-sat(+) of the electron and ion saturation currents to be equal to one causing the ball-pen probe characteristics to become symmetric. If this is achieved, the floating potential of the ball-pen probe is equal to the plasma potential. We show the application of a ball-pen probe in two low-temperature magnetised plasma devices and in torsatron TJ-K.
Permanent Link: http://hdl.handle.net/11104/0288068