Application of Ion Sensitive Probe to High Density Plasmas in Magnum-PSI

Yuki Hayashi (Corresponding author), Noriyasu Ohno, Hennie van der Meiden, John Scholten, Shin Kajita, Jonathan van den Berg, Renato Perillo, Jordy Vernimmen, Thomas Morgan

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Abstract

Feasibility of an ion sensitive probe was evaluated in high electron density (Formula Presented) 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.

Original languageEnglish
Pages (from-to)1-3
Number of pages3
JournalPlasma and Fusion Research
Volume14
DOIs
Publication statusPublished - 2019

Bibliographical note

Funding Information:
This work was supported by Japan Society for the Promotion of Science KAKENHI (16H02440), Grant-in-Aid for JSPS Research Fellow (17J05222).

Keywords

  • I-V characteristic
  • ion sensitive probe
  • ion temperature
  • Magnum-PSI

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