Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
Application of Ion Sensitive Probe to High Density Plasmas in Magnum-PSI
Yuki HAYASHINoriyasu OHNOHennie van der MEIDENJohn SCHOLTENShin KAJITAJonathan van den BERGRenato PERILLOJordy VERNIMMENThomas MORGAN
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2019 Volume 14 Pages 1202135

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Abstract

Feasibility of an ion sensitive probe was evaluated in high electron density (> 5 × 1019 m−3) helium plasmas produced in the Magnum-PSI device. The ion sensitive probe showed that the ion temperature was ∼ 1 eV and almost equal to the electron temperature. Increasing the neutral pressure to efficiently lead to the electron-ion recombination processes, the electron currents were collected at the ion collector. A secondary electron emission in the guard electrode might have an effect on the ion current.

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© 2019 by The Japan Society of Plasma Science and Nuclear Fusion Research
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