Faculty Profiles - OHNO, Noriyasu

Papers - OHNO, Noriyasu

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Erosion and Redeposition Processes of Molybdenum with Oblique Incidence of Magnetic Field Reviewed

小島昌博, 井戸康広, 江角直道, OHNO Noriyasu, TAKAMURA Shuichi

プラズマ・核融合学会誌 = Journal of plasma and fusion research Vol. 73 ( 4 ) page： 452 - 459 1997.4

Language：English Publishing type：Research paper (scientific journal) Publisher：プラズマ・核融合学会

Erosion and redeposition processes have been investigated using a linear plasma device and a Monte Carlo simulation code. Argon plasmas were irradiated on a molybdenum substrate with an oblique incidence of magnetic field. The erosion distributions depending on the direction of magnetic field are clearly observed. Numerical code analysis gives a qualitative explanation for the erosion profiles by considering the effect of prompt redeposition of high Z material. However, we have still quantitative differences for their erosion and redeposition rates.

Effects of ion flow by ExB drift on dust particle behavior in magnetized cylindrical electron cyclotron resonance plasmas Reviewed International journal

Nunomura S, Ohno N, Takamura S

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS Vol. 36 ( 2 ) page： 877 - 883 1997.2

Effects of Ion Flow by E * B Drift on Dust Particle Behavior in Magnetized Cylindrical Electron Cyclotron Resonance Plasmas.

Nunomura Shota, Ohno Noriyasu, Takamura Shuichi

Japanese Journal of Applied Physics Vol. 36 ( 2 ) page： 877 - 883 1997

Language：English Publisher：The Japan Society of Applied Physics

Interactions between poloidal ion flow associated with E× B drift and dust particles have been investigated in magnetized cylindrical electron cyclotron resonance plasmas, in which radial electric field is controlled by a biased ring-shaped electrode. The dust particles are spun out and removed from the plasma due to poloidal ion drag force, even when the inward electric force on the dust particles is larger than the gravitational force. This indicates the possibility of using a new method to remove the dust particles from the processing plasma. On the other hand, in order to sustain the dust particles in the plasma, the effects of this poloidal ion flow should be substantially reduced by the friction between the dust particles and neutral gas.

DOI： 10.1143/jjap.36.877

CiNii Research

Study of hot tungsten emissive plate in high heat flux plasma on NAGDIS-I Reviewed

M.Y.Ye, N.Ohno, S.Takamura

Journal of Nuclear Materials Vol. 241-243 page： 349-352 1997

Density threshold for plasma detachment in gas target Reviewed

N.Ezumi, S.Mori, N.Ohno, S.Takamura, H.Suzuki, J.Park

Journal of Nuclear Materials Vol. 241-243 page： 349-352 1997

Observation of the Structure and its Formation Process of a New Volumetric Coulomb Cloud Composed of Different Multiple Dust Layers Reviewed

S.Nunomura, N.Ohno, S.Takamura

Japan Journal of Applied Physics Vol. 36 page： L949-951 1997

Effects of Ion Flow by 丑X(]G1388[) Drift on Dust Particle Behaviour in Magnetizat Cylindrical Electron Cyclotron Reviewed

S.Nunomura, N.Ohno, S.Takamura

Japan Journal of Applied Physics Vol. 36 page： 877-883 1997

講座「プラズマにおけるカオス現象の観測と実験解析II」3.シースに関連したカオス３　2.準周期ルート

大野哲靖

プラズマ・核融合学会誌 Vol. 73 ( 8 ) page： 827-833 1997

Numerical Analysis on Fine Particle's Behavior in an Ion-Beam Plasma System

N.Ohno, M.Nakamura, S.Nunomura, S.Takamura

Proc. of 23th Inernational Conference on Phenomena in Ionized Gases, Toulouse, France 1997 page： 196-197 1997

Full AC Tokamak Discharge in A Small Research Device CSTN-AC

S.Takamura, K.Hayashi, Y.Marushita, K.Tashiro, Y.Uesugi, N.Ohno, K.Sakurai, M.Kobayashi, M.Takagi, O.Mitarai

Proc. of 20th EPS Conference on Controlled Fusion and Plasma Physics, Bercgtesgardenm Germany, 1997 page： 1225-1228 1997

Studies on Plasma-Gas Interactions in Powerful High Heat Flux Plasma Device NAGDIS-II

N.Ezumi, N.Ohno, Y.Uesugi, J.Park, S.Watanabe, S.A.Cohen, S.Krasheninnikov, A.Yu. Pigarov, M.Takagi, S.Takamura

Proc. of 20th EPS Conference on Controlled Fusion and Plasma Physics, Bercgtesgardenm Germany, 1997 page： 1225-1228 1997

Structure of Detached Plasmas with High Heat Flow in a Strong Magnetic Field

D.Nishijima, N.Ezumi, K.Aoki, N.Ohno, S.Takamura

International Symposium on Plasma and Flow Simulation for Materials Processing, Sendai, Japan, 1997, Reports of the Institute of Fluid Science Tohoku University Vol. 10 page： 157-166 1997

講座「プラズマにおけるカオス現象の観測と実験解析I」2.プラズマにおけるカオス　2.2カオスの解析手法

大野哲靖

プラズマ・核融合学会誌 Vol. 73 ( 7 ) page： 682-687 1997

Plasma Heat FLow through Plasma Sheath with Electron Emission and Plasma Poe\tental Variation across Magnetic Field

M.Y.Ye, K.Kudose, T.Kuwabara, N.Ohno, S.Takamura

7th Asia Pacific Physics Conference, Beijing, China, 1997 Vol. 1 1997

Static and Dynamic Erosion Behavior of TiC Coated Graphite in High Heat Flux Plasma

S.Takamura, K.Hayashi, N.Ohno, K.Morita

8th International Conference on Fusion Reactor Materials, Sendai, Japan, 1997 Vol. 1 1997

Structure and Dynamic Behavior of a Coulomb Cloud Composed of Different Multiple Dust Layers

S.Nunomura, T.Misawa, K.Asano, N.Ohno, S.Takamura

39th Annual Meeting fo the Division of Plasma Physics of the American Physical Society, Pittsburgh, USA, 1997 Vol. 1 1997

Heat Flows through Plasma Sheaths

S.Takamura, M.Y.Ye, T.Kuwabara, N.Ohno

39th Annual Meeting of the Division of Plasma Physics of the American Physical Society, Pittsburgh, USA, 1997 Vol. 1 1997

Suppression of secondary electron emission from the material surfaces with grazing incident magnetic field in the plasma Reviewed International journal

Takamura S, Mizoshita S, Ohno N

PHYSICS OF PLASMAS Vol. 3 ( 12 ) page： 4310 - 4312 1996.12

Nonlinear interactions between high heat flux plasma and electron-emissive hot material surface Reviewed International journal

Ye MY, Masuzaki S, Shiraishi K, Takamura S, Ohno N

PHYSICS OF PLASMAS Vol. 3 ( 1 ) page： 281 - 292 1996.1

Particle in Cell Simulation on Thermoelectron Emission from Hot Target Plate Reviewed

N.Ohno, E.Shimizu, S.Takamura

Contributions to Plasma Physics Vol. 36 ( 2-3 ) page： 386-390 1996

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