Measurement and control of multi-charged ions for the miniaturization of ECR ion sources

• Project/Area Number: 24810029
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Quantum beam science
• Research Institution: Oshima National College of Maritime Technology
• Principal Investigator: ASAJI Toyohisa 大島商船高等専門学校, その他部局等, 准教授 (70574565)
• Project Period (FY): 2012-08-31 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: プラズマ / イオンビーム / 電子サイクロトロン共鳴

Research Abstract

We have developed electron cyclotron resonance ion sources (ECRIS) for industrial use. In this project, we set a goal to provide guidelines for miniaturization technology of ECRISs. We have reported some experiments and design of a new ECRIS. (1) We have adopted gas-mixing techniques to cool the plasma and then reduce fullerene dissociation. Mass spectra of ion beams extracted from fullerene-He, Ar or Xe mixed plasmas were observed with a Faraday cup. The He gas mixing technique is effective against fullerene destruction. (2) We have designed a new ion source for improvement of production efficiency of multi-charged ions. A minimum-B magnetic field was designed using mainly permanent magnets. (3) A low energy Fe+ ion beam was irradiated to C60 thin film. Fe+-irradiated C60 thin film was analyzed by high performance liquid chromatography and laser desorption/ionization time-of-flight mass spectrometry. As a result, we could synthesize the Fe + C60 complex as a new material.

Research Products

• [Journal Article] Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source (2014)
  • Author(s): T. Asaji, T. Ohba, T. Uchida, H. Minezaki, S. Ishihara, R. Racz, M. Muramatsu, S. Biri, A. Kitagawa, Y. Kato, Y. Yoshida
  • Journal Title: Review of Scientific instruments Volume: 85 Issue: 2
  • DOI: 10.1063/1.4847255
  • Peer Reviewed
• [Journal Article] Design of a new electron cyclotron resonance ion source at Oshima National College of Maritime Technology (2014)
  • Author(s): T.Asaji, N.Hirabara, T.Izumihara, T.Hitobo, T.Ohba, T.Nakamizu, T.Nakamura, M.Furuse, Y.Kato
  • Journal Title: Review of Scientific Instruments Volume: Vol.85 Issue: 2
  • DOI: 10.1063/1.4847235
  • Peer Reviewed
• [Journal Article] Synthesis of endohedral iron-fullerenes by ion implantation (2014)
  • Author(s): H. Minezaki, S. Ishihara, T. Uchida, M. Muramatsu, R. Racz, T. Asaji, A. Kitagawa, Y. Kato, S. Biri, Y. Yoshida
  • Journal Title: Review of Scientific instruments Volume: 85 Issue: 2
  • DOI: 10.1063/1.4850756
  • Peer Reviewed
• [Journal Article] Status of the Bio-Nano ECRIS at Toyo University (2014)
  • Author(s): T.Uchida, H.Minezaki, S.Ishihara, M.Muramatsu, R.Racz, T.Asaji, A.Kitagawa, Y.Kato, S.Biri, A.Drentje, Y.Yoshida
  • Journal Title: Review of Scientific Instruments Volume: Vol.85 Issue: 2
  • DOI: 10.1063/1.4862212
  • Peer Reviewed
• [Presentation] Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source (2013)
  • Author(s): T.Asaji, T.Ohba, T.Uchida, H.Minezaki, S.Ishihara, M.Muramatsu, R.Racz, S.Biri, A.Kitagawa, Y.Kato, Y.Yoshida
  • Organizer: The 15^<th> International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2013-09-11
• [Presentation] Design of a new electron cyclotron resonance ion source at Oshima National College of Maritime Technology (2013)
  • Author(s): T.Asaji, N.Hirabara, T.Izumihara, T.Hitobo, T.Ohba, T.Nakamizu, T.Nakamura, M.Furuse, Y.Kato
  • Organizer: The 15^<th> International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2013-09-11
• [Presentation] Synthesis of endohedral iron-fullerene by ion implantation (2013)
  • Author(s): H.Minezaki, K.Oshima, T.Uchida, M.Muramatsu, T.Asaji, A.Kitagawa, Y.Kato, R.Racz, S.Biri, and Y.Yoshida
  • Organizer: The 15^<th> International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2013-09-11
• [Presentation] Status of the Bio-Nano ECRIS at Toyo University (2013)
  • Author(s): T.Uchida, H.Minezaki, S.Ishihara, M.Muramatsu, R.Racz, T.Asaji, A.Kitagawa, Y.Kato, S.Biri, A.Drentje, Y.Yoshida
  • Organizer: The 15^<th> International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ(千葉市)
  • Year and Date: 2013-09-11
• [Presentation] ECRイオン源におけるフラーレンプラズマへの希ガス混合効果 (2013)
  • Author(s): 浅地豊久,大葉常行,内田貴司,峰崎英和,大島康輔,村松正幸,Biri Sandor,北川敦志,加藤裕史,吉田善一
  • Organizer: 第60回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2013-03-27
• [Presentation] Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source
  • Author(s): T. Asaji, T. Ohba, T. Uchida, H. Minezaki, S. Ishihara, M. Muramatsu, R. Racz, S. Biri, A. Kitagawa, Y. Kato, Y. Yoshida
  • Organizer: The 15th International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ（千葉市）
• [Presentation] Design of a new electron cyclotron resonance ion source at OCMT
  • Author(s): T. Asaji, N. Hirabara, T. Izumihara, T. Hitobo, T. Ohba, T. Nakamizu, T. Nakamura, M. Furuse, Y. Kato
  • Organizer: The 15th International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ（千葉市）
• [Presentation] Synthesis of endohedral iron-fullerene by ion implantation
  • Author(s): H. Minezaki, K. Oshima, T. Uchida, M. Muramatsu, T. Asaji, A. Kitagawa, Y. Kato, R. Racz, S. Biri, and Y. Yoshida
  • Organizer: The 15th International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ（千葉市）
• [Presentation] Status of the Bio-Nano ECRIS at Toyo University
  • Author(s): T. Uchida, H. Minezaki, S. Ishihara, M. Muramatsu, R. Racz, T. Asaji, A. Kitagawa, Y. Kato, S. Biri, A. Drentje, Y. Yoshida
  • Organizer: The 15th International Conference on Ion Sources
  • Place of Presentation: 幕張メッセ（千葉市）
• [Presentation] ECRイオン源におけるフラーレンプラズマへの希ガス混合効果
  • Author(s): 浅地豊久
  • Organizer: 応用物理学会
  • Place of Presentation: 神奈川工科大学