Numerical study of the inductive plasma coupling to ramp up the plasma density for the Linac4 H<sup>-</sup> ion source

M. Ohta, S. Mattei, M. Yasumoto, Akiyoshi Hatayama, J. Lettry

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In the Linac4 H<sup>-</sup> ion source, the plasma is generated by an RF antenna operated at 2 MHz. In order to investigate the conditions necessary for ramping up the plasma density of the Linac4 H<sup>-</sup> ion source in the low plasma density, a numerical study has been performed for a wide range of parameter space of RF coil current and initial pressure from H<inf>2</inf> gas injection. We have employed an Electromagnetic Particle in Cell model, in which the collision processes have been calculated by a Monte Carlo method. The results have shown that the range of initial gas pressure from 2 to 3 Pa is suitable for ramping up plasma density via inductive coupling.

Original languageEnglish
Article number02B113
JournalReview of Scientific Instruments
Volume85
Issue number2
DOIs
Publication statusPublished - 2014 Feb 1

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Plasma density
Ion sources
ramps
ion sources
plasma density
Plasmas
gas injection
gas pressure
Monte Carlo method
Monte Carlo methods
coils
antennas
Antennas
electromagnetism
collisions
cells
Gases

ASJC Scopus subject areas

  • Instrumentation

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Numerical study of the inductive plasma coupling to ramp up the plasma density for the Linac4 H<sup>-</sup> ion source. / Ohta, M.; Mattei, S.; Yasumoto, M.; Hatayama, Akiyoshi; Lettry, J.

In: Review of Scientific Instruments, Vol. 85, No. 2, 02B113, 01.02.2014.

Research output: Contribution to journalArticle

Ohta, M. ; Mattei, S. ; Yasumoto, M. ; Hatayama, Akiyoshi ; Lettry, J. / Numerical study of the inductive plasma coupling to ramp up the plasma density for the Linac4 H<sup>-</sup> ion source. In: Review of Scientific Instruments. 2014 ; Vol. 85, No. 2.
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