Negative ion production in cesium seeded high electron temperature plasmas

T. Inoue, H. Tobari, N. Takado, M. Hanada, M. Kashiwagi, Akiyoshi Hatayama, M. Wada, K. Sakamoto

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In experiments on uniformity improvement in a large negative ion source, steep gradients have been observed in the profiles of electron temperature and H- ion beam intensity. It has been observed that the gradient in the H- ion beam intensity is altered by seeding cesium, though the electron temperature distribution is not affected by Cs. Thus in the Cs seeded condition, the H- ion beam intensity is enhanced in local area illuminated by high electron temperature plasmas. A brief analysis suggests possible advantages of high electron temperature plasmas for the negative ion surface production, by enhancement of dissociation to yield proton or atoms as parent particles of the negative ions.

Original languageEnglish
Article number02C112
JournalReview of Scientific Instruments
Volume79
Issue number2
DOIs
Publication statusPublished - 2008

Fingerprint

Electron temperature
Cesium
cesium
negative ions
Negative ions
electron energy
Ion beams
Plasmas
ion beams
gradients
Ion sources
inoculation
Heavy ions
ion sources
Protons
Temperature distribution
temperature distribution
dissociation
Atoms
protons

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy (miscellaneous)

Cite this

Inoue, T., Tobari, H., Takado, N., Hanada, M., Kashiwagi, M., Hatayama, A., ... Sakamoto, K. (2008). Negative ion production in cesium seeded high electron temperature plasmas. Review of Scientific Instruments, 79(2), [02C112]. https://doi.org/10.1063/1.2823899

Negative ion production in cesium seeded high electron temperature plasmas. / Inoue, T.; Tobari, H.; Takado, N.; Hanada, M.; Kashiwagi, M.; Hatayama, Akiyoshi; Wada, M.; Sakamoto, K.

In: Review of Scientific Instruments, Vol. 79, No. 2, 02C112, 2008.

Research output: Contribution to journalArticle

Inoue, T, Tobari, H, Takado, N, Hanada, M, Kashiwagi, M, Hatayama, A, Wada, M & Sakamoto, K 2008, 'Negative ion production in cesium seeded high electron temperature plasmas', Review of Scientific Instruments, vol. 79, no. 2, 02C112. https://doi.org/10.1063/1.2823899
Inoue T, Tobari H, Takado N, Hanada M, Kashiwagi M, Hatayama A et al. Negative ion production in cesium seeded high electron temperature plasmas. Review of Scientific Instruments. 2008;79(2). 02C112. https://doi.org/10.1063/1.2823899
Inoue, T. ; Tobari, H. ; Takado, N. ; Hanada, M. ; Kashiwagi, M. ; Hatayama, Akiyoshi ; Wada, M. ; Sakamoto, K. / Negative ion production in cesium seeded high electron temperature plasmas. In: Review of Scientific Instruments. 2008 ; Vol. 79, No. 2.
@article{077604d23fc445f79bf53cedd7963052,
title = "Negative ion production in cesium seeded high electron temperature plasmas",
abstract = "In experiments on uniformity improvement in a large negative ion source, steep gradients have been observed in the profiles of electron temperature and H- ion beam intensity. It has been observed that the gradient in the H- ion beam intensity is altered by seeding cesium, though the electron temperature distribution is not affected by Cs. Thus in the Cs seeded condition, the H- ion beam intensity is enhanced in local area illuminated by high electron temperature plasmas. A brief analysis suggests possible advantages of high electron temperature plasmas for the negative ion surface production, by enhancement of dissociation to yield proton or atoms as parent particles of the negative ions.",
author = "T. Inoue and H. Tobari and N. Takado and M. Hanada and M. Kashiwagi and Akiyoshi Hatayama and M. Wada and K. Sakamoto",
year = "2008",
doi = "10.1063/1.2823899",
language = "English",
volume = "79",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - Negative ion production in cesium seeded high electron temperature plasmas

AU - Inoue, T.

AU - Tobari, H.

AU - Takado, N.

AU - Hanada, M.

AU - Kashiwagi, M.

AU - Hatayama, Akiyoshi

AU - Wada, M.

AU - Sakamoto, K.

PY - 2008

Y1 - 2008

N2 - In experiments on uniformity improvement in a large negative ion source, steep gradients have been observed in the profiles of electron temperature and H- ion beam intensity. It has been observed that the gradient in the H- ion beam intensity is altered by seeding cesium, though the electron temperature distribution is not affected by Cs. Thus in the Cs seeded condition, the H- ion beam intensity is enhanced in local area illuminated by high electron temperature plasmas. A brief analysis suggests possible advantages of high electron temperature plasmas for the negative ion surface production, by enhancement of dissociation to yield proton or atoms as parent particles of the negative ions.

AB - In experiments on uniformity improvement in a large negative ion source, steep gradients have been observed in the profiles of electron temperature and H- ion beam intensity. It has been observed that the gradient in the H- ion beam intensity is altered by seeding cesium, though the electron temperature distribution is not affected by Cs. Thus in the Cs seeded condition, the H- ion beam intensity is enhanced in local area illuminated by high electron temperature plasmas. A brief analysis suggests possible advantages of high electron temperature plasmas for the negative ion surface production, by enhancement of dissociation to yield proton or atoms as parent particles of the negative ions.

UR - http://www.scopus.com/inward/record.url?scp=40149102950&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40149102950&partnerID=8YFLogxK

U2 - 10.1063/1.2823899

DO - 10.1063/1.2823899

M3 - Article

C2 - 18315238

AN - SCOPUS:40149102950

VL - 79

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 2

M1 - 02C112

ER -