Faculty Profiles - OHNO, Noriyasu

Papers - OHNO, Noriyasu

Division display 481 - 500 of about 667 ／ All the affair displays >>

28aA17P Influence of Energetic Electron Components on Unstable Oscillation of Dust Particles Trapped in Plasma-Sheath Boundary Reviewed Open Access

KOBAYASHI Atsuhiro, IMASATO Kae, OHNO Noriyasu, TAKAMURA Shuichi

( 20 ) 2003

27pB22P Fluctuation Analysis in Detached and Attached Plasmas Reviewed Open Access

Furuta K., Ohno N., Takamura S.

( 20 ) 2003

26aA40P Formation of Deep Potential Well by Electrode Biasing in Tokamak Device Reviewed Open Access

FUKUZAWA Yuma, KOJIMA Hiroki, OKADA Takahiro, OHNO Noriyasu, TAKAMURA Shuichi, IGUCHI Tetsuo

( 20 ) 2003

25aB37P Construction of High Heat Flux Toroidal Divertor Plasma Simulator Reviewed Open Access

Sora Shigeki, Kitahara Hiroyoshi, Ohno Noriyasu, Uesugi Yoshihiko, Takamura Shuichi

( 20 ) 2003

25aB11P Blister Formation on Low-Temperature Refractory Metal Surface under Low Energy and High Flux Hydrogen Plasma Irradiation Reviewed Open Access

SUGIMOTO Takanori, OHNO Noriyasu, TAKAMURA Shuichi

( 20 ) 2003

Generation and characteristics of a detached recombining plasma and its dynamic behaviour-a bridge between fusion plasmas and low-temperature ionized gases Reviewed International journal

Takamura S, Ohno N, Nishijima D, Uesugi Y

PLASMA SOURCES SCIENCE & TECHNOLOGY Vol. 11 ( 3A ) page： A42 - A48 2002.8

Characteristics of detached plasmas associated with electron-ion and molecular assisted recombinations in NAGDIS-II Reviewed International coauthorship International journal

Nishijima D., Wenzel U., Ohsumi K., Ohno N., Uesugi Y., Takamura S.

Plasma Physics and Controlled Fusion Vol. 44 ( 5 ) page： 597 - 610 2002.5

Language：English Publishing type：Research paper (scientific journal) Publisher：Plasma Physics and Controlled Fusion

Recombination in a helium and helium-hydrogen plasma was experimentally investigated in the linear divertor simulator NAGDIS-II. To identify the physical mechanisms, electron-ion recombination (EIR) and molecular assisted recombination (MAR), the plasma parameters in the recombining region have been measured. We used spectroscopic techniques on the basis of continuum emission and line emission from highly excited levels due to EIR and Langmuir probes. The dependence of the plasma parameters on the neutral pressure in a pure helium plasma and in a helium-hydrogen mixture shows clearly that recombination is caused by different processes in the two cases. In a pure helium plasma a roll-over and a following decrease of the electron density as well as a monotonic decrease of the electron temperature down to 0.1 eV were observed when increasing the helium pressure. Here EIR is the recombination mechanism. Conversely, when hydrogen is added to the helium plasma, the electron density decreases monotonically while the central electron temperature remains above 1 eV. This particular behaviour in the helium-hydrogen plasma can only be explained by the dominant action of MAR.

DOI： 10.1088/0741-3335/44/5/307

Scopus

Response to "comment on 'dynamic behaviors of dust particles in the plasma-sheath boundary'" [Phys. Plasmas 9, 1057 (2002)] Reviewed International journal Open Access

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

Physics of Plasmas Vol. 9 ( 3 ) 2002.3

Proposal of Flexible Atomic and Molecular Process Management for Monte Carlo Impurity Transport Code Based on Object Oriented Method Reviewed

K.Asano, N.Ohno, S.Takamura

Contrib. Plasma Physics Vol. 42 page： 157-162 2002

Generation and characteristics of detached recombining plasma and its dynamic behaviour - a bridge between fusion plasmas and low-temperature ionized gases Reviewed

S.Takamura, N.Ohno, D.Nishijima, Y.Uesugi

Plasma Sources Sci. Technol. Vol. 11 ( 3A ) page： A42-A4 2002

Response to Comment on "Dynamic Behaviours of Dust Particles in the Plasma Sheath Boundary" Reviewed

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

Physics of Plasmas Vol. 9 page： 1060-1061 2002

Characteristics of Detached Plasmas Associated with Electron-Ion and Molecular Assisted Recombination in NAGDIS-II Reviewed

D.Nishijima, U.Wenzel, K.Ohsumi, N.Ohno, Y.Uesugi, S.Takamura

Plasma Physics Controlled Fusion Vol. 44 page： 597-610 2002

Parametric Excitation of a Dust Particle Trapped in a Plasma-Sheath Boundary Reviewed

N.Ohno, M.Sawai, T.Misawa, K.Asano, S.Takamura

Physica Scripta Vol. T98 page： 81-86 2002

Analysics of Detached Recombining Plasmas by Collisional-Radiative Model with Energetic Electron Component Reviewed

N.Ohno, M.Motoyama, S.Takamura

Contrib. Plasma Physics Vol. 42 page： 419-424 2002

Heat Pulse in a Simulated Divertor Plasmas

Y.Uesugi, S.Takamura, K.Ohsumi, N.Ohno, D.Nishijima

29th EPS Conference on Contr. Fusion and Plasma Phys., Montroux, Switzerland, 17-21 June 2002 ECA Vol. 26B page： 1.087 2002

26aB13P Tungsten Surface Irradiated by Low Energy and High Flux Helium Plasma Reviewed Open Access

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

( 19 ) 2002

Analysis of detached recombining plasmas by collisional-radiative model with energetic electron component Reviewed International journal

Ohno N, Motoyama M, Takamura S

CONTRIBUTIONS TO PLASMA PHYSICS Vol. 42 ( 2-4 ) page： 419 - 424 2002

28pB09 Experimental Evaluation of Space-Charge Limited Emission Current from Tungsten Surface in High Density Helium Plasma Reviewed Open Access

HAGINO Yoshiharu, YE Minyou, OHNO Noriyasu, TAKAMURA Shuichi

( 19 ) 2002

26pA07 Thermoelectron Emission from a Small Electrode heated with Plasma Heat Flux in AC Tokamak Discharge Reviewed Open Access

MANABE Toshiharu, KOJIMA Hiroki, FUKUZAWA Yuma, OHNO Noriyasu, TAKAMURA Shuichi

( 19 ) 2002

26aB18P Proof-of-principle experiments on the concept of particle control by moving-surface plasma-facing components Reviewed Open Access

HIROOKA Yoshi, FUKUSHIMA Houju, OHNO Noriyasu, TAKAMURA Shuichi

( 19 ) 2002

　 PREV - NEXT 　

<OHNO, Noriyasu>

Papers - OHNO, Noriyasu