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Dynamic properties of crystallized fine-particle vortices

Research Project

Project/Area Number 11480105
Research Category

Grant-in-Aid for Scientific Research (B).

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

Principal Investigator

IIZUKA Satoru  Graduate School of Engineering, Tohoku University, Associate Professor, 大学院・工学研究科, 助教授 (20151227)

Co-Investigator(Kenkyū-buntansha) HIRATA Takamichi  Graduate School of Engineering, Tohoku University, Assistant, 大学院・工学研究科, 助手 (80260420)
SATO Noriyoshi  Graduate School of Engineering, Tohoku University, Professor, 大学院・工学研究科, 教授 (40005252)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥12,000,000 (Direct Cost: ¥12,000,000)
Fiscal Year 2000: ¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1999: ¥6,000,000 (Direct Cost: ¥6,000,000)
KeywordsFine-particle plasma / Dusty plasma / Coulomb crystal / Ion-drag force / Fine-particle cloud / vortex / Spin / Paramagnetism / ダストプラズマ / クーロン格子 / 微粒子渦流 / 電位駆動渦流 / 速度シア / プロセスプラズマ / 微粒子除去 / 微粒子集団運動
Research Abstract

The effects of potential structure and vertical magnetic field on the vortex formation of fine particles are investigated in dc and rf discharge plasmas experimentally.
First, we investigate the formation mechanism of fine-particle vortex driven by inhomogeneous potential profile provided by a small plate electrode biased negatively that is placed on a levitation electrode. It is observed that the appearance of vortex phenomena depends on the number of fine particles constituting the fine-particle cloud. The particles are accelerated near the edge of the small electrode. The rotation speed of the vortex varies in radial direction and a shear flow appears with increasing the particle number. On the other hand, when the small electrode potential becomes positive, the fine particles change their flow direction towards the edges of the small electrode. If a cylindrical electrode is used instead of the plate, then the fine particles are absorbed into the cylindrical electrode. This technique is used for fine-particle removal from the dusty plasma.
Secondary, we have investigated the driving mechanism of a rotational motion of fine-particle cloud in the presence of vertical magnetic field. We find that changing either density or potential profile in radial direction controls the rotational direction. The ion drag force due to the ion flow in ion-diamagnetic direction takes an important role of the rotation. We also observe a spin motion of fine particle. It is found that the spin axis turns to the magnetic field direction with increasing the magnetic field.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (38 results)

All Other

All Publications (38 results)

  • [Publications] G.Uchida,R.Ozaki,S.Iizuka and N.Sato: "Formation of Ring-Shaped Fine-particle Clouds in a DC Plasma,"Frontiers in Dusty Plasma. 449-452 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Sato,G.Uchida,R.Ozaki,S.Iizuka,and T.Kamimura: "Sructure Controls of Fine-Particle Clouds in DC Discharge Plasmas"Frontiers in Dusty Plasmas. 329-336 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ozaki,G.Uchida,S.Iizuka and N.Sato: "Virtical String Structure of Fine Particles in a Magnetized DC Plasma"Frontiers in Dusty Plasmas. 457-460 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Iizuka,R.Ozaki,G.Uchida and N.Sato: "Vertical Spread of Fine-Particle Clouds in a Magnetized DC Plasma"Frontiers in Dusty Plasmas. 453-456 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida,S.Iizuka and N.Sato: "Control of Fine-Particle Flow in a Plasma by Applying External Electric Field"in Proc.17^<th> Symposium on Plasma Processing. 617-620 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida,S.Iizuka,and N.Sato: "放電プラズマ中微粒子雲の挙動制御"電気学会プラズマ研究会資料. PST-00-53. 49-54 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida,S.Iizuka,and N.Sato: "Potential-Driven Fine-Particle Behaviors in a DC Discharge Plasma"Int.Congress on Plasma Physics. BP1-031. 5 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida,S.Shimizu,T.Kaneko,S.Iizuka,and N.Sato: "Control of Rotational Motion of Fine-Particle Cloud Confined in a Weakly-Magnetized DC Discharge Plasma"11^<th> Int.Toki Conf.Plasma Physics and Controlled Nuclear Fusion. PII-33. 152 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Hirose,T.Kamimura,N.Sato,S.Iizuka, and G.Uchida: "Computer simulation on fine particle behaviors in plasmas"11^<th> Int.Toki Conf.Plasma Physics and Controlled Nuclear Fusion. PII-30. 149 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Shimizu,G.Uchida,T.Kaneko,S.Iizuka and N.Sato: "Rotation Control of Fine Particle Clouds in Magnetized RF Plasma"Plasma Science Symposium/18^<th> Symposium on Plasma Processing. 401-402 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Kaneko,S.Shimizu,G.Uchida,S.Iizuka and N.Sato: "Effect of Plasma Parameter Profile on the Rotation of Fine-Particle Cloud"Plasma Science Symposium/18^<th> Symposium on Plasma Processing. 403-404 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Fukagawa,S.Raychaudhuri,G.Uchida,S.Iizuka and N.Sato: "Behaviors of Single Fine Particle in a dc Discharge Plasma"Plasma Science Symposium/18^<th> Symposium on Plasma Processing. 409-410 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida,S.Iizuka,and N.Sato: "Fine-Particle Clouds Controlled in a DC Discharge Plasma"IEEE Transactions on Plasma Science on Dusty Plasmas. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Sato,G.Uchida,T.Kaneko,S.Shimizu,and S.Iizuka: "Dynamics of Fine particles in Magnetized Plasmas"Physics of Plasmas. 8(in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, R.Ozaki, S.Iizuka, and N.Sato: "Formation of Ring-Shaped Fine-particle Clouds in a DC Plasma"Proc.2^<nd> Int.Conf.Phys.of Dusty Plasmas, Frontiers in Dusty Plasmas (Amsterdam, Elservier). 449-452 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Sato, G.Uchida, R.Ozaki, S.Iizuka, and T.Kamimura: "Structure Controls of Fine-Particle Clouds in DC Discharge Plasmas"Proc.2^<nd> Int.Conf.Phys.of Dusty Plasmas, Frontiers in Dusty Plasmas (Amsterdam, Elservier, 2000). 329-336 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ozaki, G.Uchida, S.Iizuka, and N.Sato: "Vertical String Structure of Fine Particles in a Magnetized DC Plasma"Proc.2^<nd> Int.Conf.Physics of Dusty Plasmas, Frontiers in Dusty Plasmas (Amsterdam, Elservier, 2000). 457-460 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Iizuka, R.Ozaki, G.Uchida, and N.Sato: "Vertical Spread of Fine-Particle Clouds in a Magnetized DC Plasma"Proc.2^<nd> Int.Conf.Phys.of Dusty Plasmas, Frontiers in Dusty Plasmas (Amsterdam, Elservier, 2000). 453-456 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, S.Iizuka and N.Sato: "Control of Fine-Particle Flow in a Plasma by Applying External Electric Field"Proc.17^<th> Symposium on Plasma Processing. 617-620 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, S.Iizuka and N.Sato: "Dynamic control of fine-particle cloud in dc discharge plasma"Plasma Research Workshop, Institute of Elec.Engineers of Japan. PST-00-53 (Japanese). 49-54 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, S.Iizuka and N.Sato: "Potential-Driven Fine-Particle Behaviors in a DC Discharge Plasma"Abstracts of Int.Congress on Plasma Physics. BP1.031. 5 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, S.Shimizu, T.Kaneko.S.Iizuka, and N.Sato: "Control of Rotational Motion of Fine-Particle Cloud Confined in a Weakly-Magnetized DC Discharge Plasma"Abstracts 11^<th> Int.Toki Conf.Plasma Physics and Controlled Nuclear Fusion. P II-33. 152 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Hirose, T.Kamimura, N.Sato, S.Iizuka, and G.Uchida: "Computer simulation on fine particle behaviors in plasmas"Abstracts 11^<th> Int.Toki Conf.Plasma Physics and Controlled Nuclear Fusion. P II-30. 149 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Shimizu, G.Uchida, T.Kaneko, S.Iizuka and N.Sato: "Rotation Control of Fine Particle Clouds in a Magnetized RF Plasma"Proc. of Plasma Science Symposium 2001/18^<th> Symposium on Plasma Processing. 401-402 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Kaneko, S.Shimizu, G.Uchida, S.Iizuka and N.Sato: "Effect of Plasma Parameter Profile on the Rotation of Fine-Particle Cloud"Proc. of Plasma Science Symposium 2001/18^<th> Symposium on Plasma Processing. 403-404 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Fukagawa, S.Raychaudhuri, G.Uchida, S.Iizuka and N.Sato: "Behaviors of Single Fine Particle in a dc Discharge Plasma"Proc. of Plasma Science Symposium 2001/18^<th> Symposium on Plasma Processing. 409-410 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] G.Uchida, S.Iizuka, and N.Sato: "Fine-Particle Clouds Controlled in a DC Discharge Plasma"The Special Issue of IEEE Transactions on Plasma Science on Dusty Plasmas. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Sato, G.Uchida, T.Kaneko, S.Shimizu, and S.Iizuka: "Dynamics of Fine Particles in Magnetized Plasmas"Physics of Plasmas. Vol.8, No.5, (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] N.Sato,G.Uchida,H.Horiguchi,T.Kaneko and S.Iizuka,: "Fine particles in strongly-magnetized plasmas"The 8th Workshop on the Physics of Dusty Plasmas. 66 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Sato,G.Uchida,T.Kaneko and S.Iizuka,: "Fine particle dynamics in low pressure dc discharge plasmas"The 8th Workshop on the Physics of Dusty Plasmas. 76 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Sato,G.Uchida,T.Kaneko,and S.Iizuka: "Dynamics of fine-particle clouds in plasmas"Int.Topical Conf.on Plasma Physics : Colloidal Plasma Science. 14 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Uchida,S.Shimizu,T.Kaneko,S.Iizuka,and N.Sato: "Control of rotational motions of fine particle clouds confined in a weakly-magnetized dc discharge plasma"11th Int.Toki Conf.on Plasma Physics and Controlled Nuclear Fusion "Potential and Structure in Plasmas". 155 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Uchida,S.Iizuka and N.Sato: "Control of fine-particle flow in a plasma by applying external electric field"Proc.of 17th Symp.on Plasma Processing. 617-620 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] G.Uchida,S.Iizuka and N.Sato: "Potential-driven fine-particle behaviors in a dc discharge plasma"Int.Congress on Plasma Physics. 5 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.Iizuka,R.Ozaki,G.Uchida et al.: "Vertical Spread of Fine-Particle Clouds in a Magnetized DC Plasma"Frontiers in Dusty Plasmas. 453-456 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] R.Ozaki,G.Uchida,S.Iizuka et al.: "Vertical String Structure of Fine Particles in a Magnetized DC Plasma"Frontiers in Dusty Plasmas. 457-460 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] G.Uchida,R.Ozaki,S.Iizuka et al.: "Formation of Ring-Shaped Fine-Particle Clouds in a DC Plasma"Frontiers in Dusty Plasmas. 449-452 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Sato,G.Uchida,S.Iizuka et al.: "Structure Controls of Fine-Particle Clouds in DC Discharge Plasmas"Frontiers in Dusty Plasmas. 329-337 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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