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Elucidation of molecular processes in negative ion volume production with measuring VUV emissions in RF discharge D_2 plasmas

Research Project

Project/Area Number 14208049
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field プラズマ理工学
Research InstitutionYamaguchi University

Principal Investigator

FUKUMASA Osamu  Yamaguchi University, Faculty of Engineering, Professor, 工学部, 教授 (20026321)

Co-Investigator(Kenkyū-buntansha) NAITOU Hiroshi  Yamaguchi University, Faculty of Engineering, Professor, 工学部, 教授 (10126881)
SAKIYAMA Satoshi  Yamaguchi University, Collaborative Research Center, Associate Professor, 地域共同研究開発センター, 助教授 (60162327)
TAKEIRI Yasuhiko  National Institute for Fusion Science, Particle Beam Heated Plasma Research Division, Professor, 粒子加熱プラズマ研究系, 教授 (60179603)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥44,720,000 (Direct Cost: ¥34,400,000、Indirect Cost: ¥10,320,000)
Fiscal Year 2004: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2003: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
Fiscal Year 2002: ¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Keywordsnegative ion source for NBI / volume production / surface production / VUV emission / isotope effect of H^- / D^- production / RE plasma / mesh grid negatively biasing / magnetic filter / レーザ光脱離法
Research Abstract

In the design of a neutral beam injection (NBI) system for future large fusion devices such as the ITER, sources of H^- or D^- negative ions are required for generation of efficient neutral beams with energies 1 MeV. Long life time ion sources are also required for the future NBI systems. Microwave discharge plasmas and RF discharge plasmas are promising as long life time ion sources. Here, production and control of D_2 RF discharge plasmas, enhancement of D^- ions production and isotope effect of H^-/D^- production are studied. Findings are summaried as the following five items :
1.With magnetic filter method, production and control of DC discharge D_2 plasmas are discussed for enhancement of D^- volume production.
2.For enhancement of volume negative ion production, effect of Argon addition into H_2 and D_2 plasmas are discussed with measuring plasma parameters and VUV emissions.
3.For H^-/D^- negative ion production, production and control of RF discharge plasmas are studied with grid bias method.
4.Grid bias method and magnetic filter method for controlling plasma parameters are discussed for negative ions productions.
5.Modeling of negative ion sources.
(1)Extraction probability of negative ions in cesium seeded hydrogen plasmas.
(2)Relationship between behaviors of primary fast electrons and ionization collisions and excitation collisions of vibrational hydrogen molecules.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (57 results)

All 2006 2005 2004 2003 2002 Other

All Journal Article (43 results) Book (6 results) Publications (8 results)

  • [Journal Article] Electron Temperature Control in RF Plasmas with Mesh Grid Bias and its Application to Hydrogen Negative Ion Production2006

    • Author(s)
      Y.Nakao
    • Journal Title

      Proceedings of the 6th International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing

      Pages: 185-186

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Volume Production of D^- Negative Ions in Low-Pressure D_2 Plasmas - Negative Ion Densties versus Plasma Parameters2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      4th IAEA Technical Meeting on "Negative Ion Based Neutral Beam Injectors"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of Negative Iion Transport in Cesium-Seeded Volume Negative Ions Souces2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      4th IAEA Technical Meeting on "Negative Ion Based Neutral Beam Injectors"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study of Argon Additive in a Beam Injection Type Negative Ion Source Usin VUV Emission Spectroscopy2005

    • Author(s)
      N.Nakada
    • Journal Title

      Thin Solid Films (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] D^- Density Distribution and Its Dependence on Plasma Parameters in Volume Negative Ion Sources2005

    • Author(s)
      S.Mori
    • Journal Title

      Thin Solid Films (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of negative ion transport in caesium-seeded volume negative ions sources2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      Nuclear Fusion 45(in press)

    • NAID

      120000863972

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Relationship between H^-/D^- Production and Plasma Parameter Control with Magnetic Filter in Volume Negative Ion Sources2005

    • Author(s)
      S.Mori
    • Journal Title

      Novel Materials Processing by Advanced Electromagnetic Energy Sources MAPEES' 04

      Pages: 55-58

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Electron Temperature Control in RF Plasmas with Mesh Grid Bias and its Application to Hydrogen Negative Ion Production2005

    • Author(s)
      Y.Nakao
    • Journal Title

      Proceedings of the 6th International Conference on Reactive Plasm as and 23rd Symposium on Plasma Processing

      Pages: 185-186

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Volume Production of D^- Negative Ions in Low-Pressure D_2 Plasmas -Negative Ion Densities versus Plasma Parameters2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      4th IAEA Technical Meeting on "Negative Ion Based Neutral Beam Injectors"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of Negative lion Transport in Cesium-Seeded Volume Negative Ions Sources2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      4th IAEA Technical Meeting on "Negative Ion Based Neutral Beam Injectors"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study of Argon Additive in a Beam Injection Type Negative Ion Source Using VUV Emission Spectroscopy2005

    • Author(s)
      N.Nakada
    • Journal Title

      Thin Solid Films (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of Negative lion Transport in Caesium-Seeded Volume Negative Ions Sources2005

    • Author(s)
      O.Fukumasa
    • Journal Title

      Nuclear Fusion 45(in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Relationship between H^-/D^- Production and Plasma Parameter Control with Magnetic Filter in Volume Negative Ion Sources2005

    • Author(s)
      S.Mori
    • Journal Title

      Novel Materials Processing by Advanced Electromagnetic Energy Sources MAPEES'04

      Pages: 55-58

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Simulation of Photo-detached Electrons in Negative Ion Plasmas2004

    • Author(s)
      H.Naitou
    • Journal Title

      Plasma Physics and Controlled Fusion 46

      Pages: 1217-1230

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-Pressure H_2/D_2 Plasmas - Measurement of VUV Emissions and Negative Ion Densities -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      Contribution to Plasma Physics 44・5-6

      Pages: 516-522

    • NAID

      120001046860

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Two-Dimensional Particle Simulation of Photo-Detached Electrons Hydrogen Plasma Including Negative Ions2004

    • Author(s)
      Y.Sakuai
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 201-201

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study of Argon Additive in a Beam Injection Type Negative Ion Source Usin VUV Emission Spectroscopy2004

    • Author(s)
      N.Nakada
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 447-447

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] High-Density ECR Plasma Production with Argon Addition for Negative Ion Sources2004

    • Author(s)
      T.Sakai
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 448-448

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Numerical Study on Physical Mechanism of Energy Dependent Electron Transport Across the Magnetic Filter2004

    • Author(s)
      M.Syouda
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 449-449

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] D^- Density Distribution and Its Dependence on Plasma Parameters in Volume Negative Ion Sources2004

    • Author(s)
      S.Mori
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 451-451

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume production in Low-Pressure H_2/D_2 Plasmas - Negative Ion Densities Versus Plasma Parameters -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      10th Intermational Symposium on Production and Neutralization of Negative Ions and Beams

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Extraction Probability of Negative Ions from Hydrogen Ion Sources - Effect of Filter Magnetic Field and Gas Pressure -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      10th Intermational Symposium on Production and Neutralization of Negative Ions and Beams

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Simulation of Photo-detached Electrons in Negative Ion Plasmas2004

    • Author(s)
      H.Naitou
    • Journal Title

      Plasma Physics and Controlled Fusions Vol.46

      Pages: 1217-1230

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-pressure H_2/D_2 Plasmas - Measurement of VUV emission and Negative Ion Densities -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      Contribution to Plasma Physics Vol.44, No.5-6

      Pages: 516-522

    • NAID

      120001046860

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Two-Dimensional Particle Simulation of Photo-Detached Electrons Hydrogen Plasma Including Negative Ions2004

    • Author(s)
      Y.Sakurai
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 201-201

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Study of Argon Additive in a Beam Injection Type Negative Ion Source Using VUV Emission Spectroscopy2004

    • Author(s)
      N.Nakada
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 447-447

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Numerical Study on Physical Mechanism of Energy Dependent Electron Transport Across the Magnetic Filter2004

    • Author(s)
      M.Shouda
    • Journal Title

      7th Asia Pacific Conference on Plasma Science and Technology & 17th Symposium on Plasma Science for Materials

      Pages: 449-449

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-Pressure H_2/D_2 Plasmas - Negative Ion Densities Versus Plasma Parameters -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      10th International Symposium on Production and Neutralization of Negative Ions and Beams

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Extraction Probability of Negative Ions from Hydrogen Ion Sources - Effect of Filter Magnetic Field and Gas Pressure -2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      10th International Symposium on Production and Neutralization of Negative Ions and Beams

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-Pressure H_2/D_2 Plasmas - Measurement of VUV Emissions and Negative Ion Densities2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      Contribution to Plasma Physics 44・5-6

      Pages: 516-522

    • NAID

      120001046860

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Extraction Probability of Negative Ions from Hydrogen Ion Sources -Effect of Filter Magnetic Field and Gas Pressure-2004

    • Author(s)
      O.Fukumasa
    • Journal Title

      10th International Symposium on Production and Neutralization of Negative Ions and Beams (CD-ROM)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Negative ion density distribution in a volume negative ion source - its dependence on plasma parameters -2003

    • Author(s)
      S.Mori
    • Journal Title

      IEEE The 30th International Conference on Plasma Science

      Pages: 209-209

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Control of plasma parameters in RF negative ion sources2003

    • Author(s)
      Y.Tauchi
    • Journal Title

      IEEE The 30th International Conference on Plasma Science

      Pages: 210-210

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Development of ECR negative ion sources - effects of argon addition of ECR plasmas -2003

    • Author(s)
      K.Fujioka
    • Journal Title

      IEEE The 30th International Conference on Plasma Science

      Pages: 211-211

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-Pressure H_2/D_2 Plasmas - Measurement of VUV Emissions and Negative Ion Densities -2003

    • Author(s)
      O.Fukumasa
    • Journal Title

      ICPIG XXVI International Conference on Phenomena in Ionized Gases 1

      Pages: 13-14

    • NAID

      120001046860

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of negative ion transport in hydrogen ion source - analysis for velocity distribution of extracted H^- ions -2003

    • Author(s)
      T.Fukuchi
    • Journal Title

      ICPIG XXVI International Conference on Phenomena in Ionized Gases 3

      Pages: 123-124

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Control of plasma parameters in RF negative ion sources2003

    • Author(s)
      Y.Tauch
    • Journal Title

      IEEE The 30th International Conference on Plasma Science

      Pages: 210-210

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotope Effect of H^-/D^- Volume Production in Low-pressure H_2/D_2 Plasmas - Measurement of VUV Emission and Negative Ion Densities -2003

    • Author(s)
      O.Fukumasa
    • Journal Title

      ICPIG XXVI International Conference on Phenomena in Ionized Gases Vol.1

      Pages: 13-14

    • NAID

      120001046860

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of negative ion transport in hydrogen ion source - analysis for velocity distribution of extracted H^- ions -2003

    • Author(s)
      T.Fukuchi
    • Journal Title

      ICPIG XXVI International Conference on Phenomena in Ionized Gases Vol.3

      Pages: 123-124

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study of isotope effect on H^-/D^- volume production in low-pressure H_2/D_2 plasmas using VUV emission2002

    • Author(s)
      O.Fukumasa
    • Journal Title

      Proc. 9th Symp. Production & Neutralization of Negative Ions & Beams

      Pages: 28-34

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of negative ion transport in hydrogen ion sources - estimation of extracted H^- current2002

    • Author(s)
      O.Fukumasa
    • Journal Title

      Proc. 9th Symp. Production & Neutralization of Negative Ions & Beams

      Pages: 75-81

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study of isotope effect on H^-/D^- volume production in low-pressure H_2/D_2 plasmas using VUV emission2002

    • Author(s)
      O.Fukumasa
    • Journal Title

      Proc.9th Symp.Production & Neutralization of Negative Ions & Beams

      Pages: 28-34

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Modeling of negative ion transport in hydrogen ion sources - estimation of extracted H^- current2002

    • Author(s)
      O.Fukumasa
    • Journal Title

      Proc.9th Symp.Production & Neutralization of Negative Ions & Beams

      Pages: 75-81

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Production and Neutralization of Negative Ions and Beams2005

    • Author(s)
      Edited by Joseph D.Sherman, Yuri I.belchenko (分担執筆)
    • Total Pages
      353
    • Publisher
      American Insitute of Physics
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Novel Materials Processing by Advanced Electromagnetic Energy Sources MAPEES' 042005

    • Author(s)
      Edited by S.Miyake (分担執筆)
    • Total Pages
      458
    • Publisher
      ELSEVIER
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Production and Neutralization of Negative Ions and Beams2005

    • Author(s)
      Edited by Joseph D.Sherman, Yuri I.Belchenko
    • Total Pages
      353
    • Publisher
      American Institute of Physics
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Novel Materials Processing by Advanced Electromagnetic Energy Sources MAPEES'042005

    • Author(s)
      Edited by S.Miyake
    • Total Pages
      458
    • Publisher
      ELSEVIER
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Production and Neutralization of Negative Ions and Beams2002

    • Author(s)
      Edited by Martin P. Stockli (分担執筆)
    • Total Pages
      208
    • Publisher
      American Institute of Physics
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Production and Neutralization of Negative Ions and Beams2002

    • Author(s)
      Edited by Martin P.Stockli
    • Total Pages
      208
    • Publisher
      American Institute of Physics
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] O.Fukumasa: "Isotope effect of H^-/D^- volume production in low-pressure H_2/D_2 Plasmas - measurement of VUV emissions and negative ion densities -"Contributions to Plasma Physics. (in press). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] O.Fukumasa: "Isotope effect of H^-/D^- volume production in low-pressure H_2/D_2 Plasmas - measurement of VUV emissions and negative ion densities -"ICPIG XXVI International Conference on Phenomena in Ionized Gases. Vol.1. 13-14 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Fukuchi: "Modeling of negative ion transport in hydrogen ion source - analysis for velocity distribution of extracted H^- ions -"ICPIG XXVI International Conference on Phenomena in Ionized Gases. Vol.3. 123-124 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Mori: "Negative ion density distribution in a volume negative ion source - its dependence on plasma parameters -"IEEE The 30th International Conference on Plasma Science. 209 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Tauchi: "Control of plasma parameters in RF negative ion sources"IEEE The 30th International Conference on Plasma Science. 210 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Fujioka: "Development of ECR negative ion sources - effects of argon addition of ECR plasmas -"IEEE The 30th International Conference on Plasma Science. 211 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] O.Fukumasa: "Study of isotope effect on H^-/D^-volume production in low-pressure H_2/D_2 plasmas using VUV emission"Proc. 9th Symp. Production & Neutralization of Negative Ions & Beams. 28-34 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] O.Fukumasa: "Modeling of negative ion transport in hydrogen ion sources-estimation of extracted H^-current"Proc. 9th Symp. Production & Neutralization of Negative Ions & Beams. 75-81 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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