Analysis of the H- ion emissive surface in the extraction region of negative ion sources

N. Kameyama, T. Fukuyama, S. Wada, Sylvain Kuppel, K. Tsumori, H. Nakano, A. Hatayama*, K. Miyamoto, A. Fukano, M. Bacal

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To understand the plasma characteristics in the extraction region of negative H- sources is very important for the optimization of H - extraction from the sources. The profile of plasma density and electrostatic potential in the extraction region with and without extraction grid voltage are analyzed with a 2D particle in cell modeling of the NIFS-RD H- sources. The simulation results make clear the physical process forming a double ion plasma layer (which consists only of positive H+ and negative H- ions) recently observed in the Cs-seeded experiments of the NIFS-RD source in the vicinity of the extraction hole and the plasma grid. The results also give a useful insight into the formation mechanism of the plasma meniscus and the H- extraction process for such double ion plasma.

Original languageEnglish
Article number02A721
Number of pages5
JournalReview of Scientific Instruments
Volume83
Issue number2
Early online date17 Feb 2012
DOIs
Publication statusPublished - 2012

Fingerprint

Ion sources
negative ions
ion sources
Negative ions
Plasmas
Ions
ions
grids
plasma layers
Plasma density
menisci
plasma density
Electrostatics
electrostatics
optimization
Electric potential
electric potential
profiles
cells
simulation

ASJC Scopus subject areas

  • Instrumentation

Cite this

Analysis of the H- ion emissive surface in the extraction region of negative ion sources. / Kameyama, N.; Fukuyama, T.; Wada, S.; Kuppel, Sylvain; Tsumori, K.; Nakano, H.; Hatayama, A.; Miyamoto, K.; Fukano, A.; Bacal, M.

In: Review of Scientific Instruments, Vol. 83, No. 2, 02A721, 2012.

Research output: Contribution to journalArticle

Kameyama, N, Fukuyama, T, Wada, S, Kuppel, S, Tsumori, K, Nakano, H, Hatayama, A, Miyamoto, K, Fukano, A & Bacal, M 2012, 'Analysis of the H- ion emissive surface in the extraction region of negative ion sources', Review of Scientific Instruments, vol. 83, no. 2, 02A721. https://doi.org/10.1063/1.3673495
Kameyama, N. ; Fukuyama, T. ; Wada, S. ; Kuppel, Sylvain ; Tsumori, K. ; Nakano, H. ; Hatayama, A. ; Miyamoto, K. ; Fukano, A. ; Bacal, M. / Analysis of the H- ion emissive surface in the extraction region of negative ion sources. In: Review of Scientific Instruments. 2012 ; Vol. 83, No. 2.
@article{78965088407940298e4f49d3424fe4eb,
title = "Analysis of the H- ion emissive surface in the extraction region of negative ion sources",
abstract = "To understand the plasma characteristics in the extraction region of negative H- sources is very important for the optimization of H - extraction from the sources. The profile of plasma density and electrostatic potential in the extraction region with and without extraction grid voltage are analyzed with a 2D particle in cell modeling of the NIFS-RD H- sources. The simulation results make clear the physical process forming a double ion plasma layer (which consists only of positive H+ and negative H- ions) recently observed in the Cs-seeded experiments of the NIFS-RD source in the vicinity of the extraction hole and the plasma grid. The results also give a useful insight into the formation mechanism of the plasma meniscus and the H- extraction process for such double ion plasma.",
author = "N. Kameyama and T. Fukuyama and S. Wada and Sylvain Kuppel and K. Tsumori and H. Nakano and A. Hatayama and K. Miyamoto and A. Fukano and M. Bacal",
year = "2012",
doi = "10.1063/1.3673495",
language = "English",
volume = "83",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - Analysis of the H- ion emissive surface in the extraction region of negative ion sources

AU - Kameyama, N.

AU - Fukuyama, T.

AU - Wada, S.

AU - Kuppel, Sylvain

AU - Tsumori, K.

AU - Nakano, H.

AU - Hatayama, A.

AU - Miyamoto, K.

AU - Fukano, A.

AU - Bacal, M.

PY - 2012

Y1 - 2012

N2 - To understand the plasma characteristics in the extraction region of negative H- sources is very important for the optimization of H - extraction from the sources. The profile of plasma density and electrostatic potential in the extraction region with and without extraction grid voltage are analyzed with a 2D particle in cell modeling of the NIFS-RD H- sources. The simulation results make clear the physical process forming a double ion plasma layer (which consists only of positive H+ and negative H- ions) recently observed in the Cs-seeded experiments of the NIFS-RD source in the vicinity of the extraction hole and the plasma grid. The results also give a useful insight into the formation mechanism of the plasma meniscus and the H- extraction process for such double ion plasma.

AB - To understand the plasma characteristics in the extraction region of negative H- sources is very important for the optimization of H - extraction from the sources. The profile of plasma density and electrostatic potential in the extraction region with and without extraction grid voltage are analyzed with a 2D particle in cell modeling of the NIFS-RD H- sources. The simulation results make clear the physical process forming a double ion plasma layer (which consists only of positive H+ and negative H- ions) recently observed in the Cs-seeded experiments of the NIFS-RD source in the vicinity of the extraction hole and the plasma grid. The results also give a useful insight into the formation mechanism of the plasma meniscus and the H- extraction process for such double ion plasma.

UR - http://www.scopus.com/inward/record.url?scp=84857839699&partnerID=8YFLogxK

U2 - 10.1063/1.3673495

DO - 10.1063/1.3673495

M3 - Article

VL - 83

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 2

M1 - 02A721

ER -