Institute of Space and Plasma Sciences

Research Output 1970 2019

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1970
38 Citations (Scopus)

An improved type of electron temperature probe

Hirao, K. & Oyama, K. I., 1970 Jan 1, In : Journal of geomagnetism and geoelectricity. 22, 4, p. 393-402 10 p.

Research output: Contribution to journalArticle

Open Access
temperature probes
probe
electron energy
electron
temperature
1 Citation (Scopus)

Effect of Electron heating on the Electron Temperature Probe

Hirao, K. & Oyama, K. I., 1970 Jan 1, In : Journal of geomagnetism and geoelectricity. 22, 3, p. 341-352 12 p.

Research output: Contribution to journalArticle

Open Access
temperature probes
probe
electron energy
heating
electron
1971
4 Citations (Scopus)

Electron Temperature Observed with the Langmuir Probe and Electron Temperature Probe

Hirao, K. & Oyama, K., 1971 Jan 1, In : Journal of geomagnetism and geoelectricity. 23, 2, p. 161-167 7 p.

Research output: Contribution to journalArticle

Open Access
temperature probes
electrostatic probes
probe
electron energy
rockets
8 Citations (Scopus)

Measurement of the Space Potential in Plasma

Hirao, K. & Oyama, K. I., 1971 Jan 1, In : Journal of geomagnetism and geoelectricity. 23, 1, p. 47-60 14 p.

Research output: Contribution to journalArticle

Open Access
plasma
probe
probes
ambiguity
direct current
1972
16 Citations (Scopus)

A critical study on the reliability of electron temperature measurements with a langmuir probe

Hirao, K. & Oyama, K., 1972 Jan 1, In : Journal of geomagnetism and geoelectricity. 24, 4, p. 415-427 13 p.

Research output: Contribution to journalArticle

Open Access
electrostatic probes
temperature measurement
probe
electron energy
electron
1975
8 Citations (Scopus)

Electron Temperature Probe Experiments on the Satellite “Taiyo”

Oyama, K. I. & Hirao, K., 1975 Jan 1, In : Journal of geomagnetism and geoelectricity. 27, 4, p. 321-330 10 p.

Research output: Contribution to journalArticle

Open Access
temperature probes
probe
electron energy
electron
probes
2 Citations (Scopus)

Erroneous evaluation of electron and ion temperatures from a contaminated retarding potential trap

Koichiro, O. & Kunio, H., 1975 Jan 1, In : Planetary and Space Science. 23, 9, p. 1309-1312 4 p.

Research output: Contribution to journalArticle

ion temperature
electrode
retarding
traps
electron energy
2 Citations (Scopus)

Ordinary Electromagnetic Mode Instability

Cheng, C. Z., 1975 Apr, In : Journal of Plasma Physics. 13, 2, p. 335-348 14 p.

Research output: Contribution to journalArticle

electromagnetism
cyclotron frequency
velocity distribution
rings
magnetic fields
1976
28 Citations (Scopus)

Application of a glass-sealed Langmuir probe to ionosphere study

Koichiro, O. & Hirao, K., 1976 Dec 1, In : Review of Scientific Instruments. 47, 1, p. 101-107 7 p.

Research output: Contribution to journalArticle

Langmuir probes
Ionosphere
electrostatic probes
ionospheres
Glass
25 Citations (Scopus)

A systematic investigation of several phenomena associated with contaminated Langmuir probes

Koichiro, O., 1976 Jan 1, In : Planetary and Space Science. 24, 2, p. 183-190 8 p.

Research output: Contribution to journalArticle

electrostatic probes
contamination
probe
electrode
electrodes
6 Citations (Scopus)

Evidences of a distorted electron energy distribution in ionospheric plasma

Koichiro, O. & Kunio, H., 1976 Jan 1, In : Planetary and Space Science. 24, 9

Research output: Contribution to journalArticle

ionospherics
energy distribution
electron energy
plasma
electron
19 Citations (Scopus)

Inaccuracies in electron density estimates due to surface contamination of Langmuir probes

Koichiro, O. & Hirao, K., 1976 Jan 1, In : Planetary and Space Science. 24, 1, p. 87-89 3 p.

Research output: Contribution to journalArticle

electrostatic probes
electron density
contamination
probe
estimates
4 Citations (Scopus)

Local Characteristics of the Electron Temperature Profile

Hirao, K. & Oyama, K., 1976 Jan 1, In : Journal of geomagnetism and geoelectricity. 28, 6, p. 507-514 8 p.

Research output: Contribution to journalArticle

Open Access
temperature profile
temperature profiles
electron energy
electron
temperature
553 Citations (Scopus)

The integration of the vlasov equation in configuration space

Cheng, C-Z. & Knorr, G., 1976 Jan 1, In : Journal of Computational Physics. 22, 3, p. 330-351 22 p.

Research output: Contribution to journalArticle

Vlasov equation
Vlasov Equation
vlasov equations
Configuration Space
Distribution functions
1977
54 Citations (Scopus)

Formation of convective cells, anomalous diffusion, and strong plasma turbulence due to drift instabilities

Cheng, C. Z. & Okuda, H., 1977 Jan 1, In : Physical review letters. 38, 13, p. 708-711 4 p.

Research output: Contribution to journalArticle

plasma turbulence
plasma diffusion
cells
power spectra
turbulence
17 Citations (Scopus)

New three-dimensional simulation models for cylindrical and toroidal plasmas

Cheng, C. Z. & Okuda, H., 1977 Oct, In : Journal of Computational Physics. 25, 2, p. 133-150 18 p.

Research output: Contribution to journalArticle

cylindrical plasmas
toroidal plasmas
Simulation Model
Plasma
Plasma devices
23 Citations (Scopus)

The integration of the Vlasov equation for a magnetized plasma

Cheng, C. Z., 1977 Aug, In : Journal of Computational Physics. 24, 4, p. 348-360 13 p.

Research output: Contribution to journalArticle

Vlasov equation
Vlasov Equation
vlasov equations
Plasma
Integrate
1978
5 Citations (Scopus)

Direct measurement of conjugate photoelectrons and predawn 630 nm airglow

Shepherd, G. G., Pieau, J. F., Ogawa, T., Tohmatsu, T., Oyama, K. & Watanabe, Y., 1978 Mar, In : Planetary and Space Science. 26, 3, p. 211-217 7 p.

Research output: Contribution to journalArticle

airglow
photoelectrons
electron
electron energy
oxygen
11 Citations (Scopus)

Higher order multipoles and splines in plasma simulations

Okuda, H. & Cheng, C. Z., 1978 Jan 1, In : Computer Physics Communications. 14, 3-4, p. 169-176 8 p.

Research output: Contribution to journalArticle

Plasma simulation
splines
Splines
multipoles
grids
9 Citations (Scopus)

Numerical simulation of trapped-electron instabilities in toroidal geometry

Cheng, C. Z. & Okuda, H., 1978 Jan 1, In : Physical review letters. 41, 16, p. 1116-1119 4 p.

Research output: Contribution to journalArticle

ballooning modes
plasma turbulence
trapped particles
geometry
electrons
49 Citations (Scopus)

Theory and numerical simulations on collisionless drift instabilities in three dimensions

Cheng, C. Z. & Okuda, H., 1978 May, In : Nuclear Fusion. 18, 5, p. 587-607 21 p.

Research output: Contribution to journalArticle

particle diffusion
plasma diffusion
plasma turbulence
ion motion
simulation
1979
14 Citations (Scopus)

Anomalous Heating of the Thermal Electrons Near the Focus of the Sq Current Vortex (Sq Focus Anomaly)

Oyama, K. I. & Hirao, K., 1979 Jan 1, In : Journal of geomagnetism and geoelectricity. 31, 1, p. 11-19 9 p.

Research output: Contribution to journalArticle

Open Access
vortex
vortices
anomalies
heating
anomaly
19 Citations (Scopus)

Distortions of the energy distribution of ionospheric thermal electrons near the focus of Sq current vortex

Koichiro, O. & Hirao, K., 1979 Jan 1, In : Planetary and Space Science. 27, 2, p. 183-192 10 p.

Research output: Contribution to journalArticle

ionospherics
vortex
energy distribution
vortices
electron
8 Citations (Scopus)

Electrostatic and magnetostatic particle simulation models in three dimensions

Okuda, H., Lee, W. W. & Cheng, C. Z., 1979 Jun, In : Computer Physics Communications. 17, 3, p. 233-238 6 p.

Research output: Contribution to journalArticle

Magnetostatics
magnetostatics
Electrostatics
electrostatics
Magnetic fields
1980
68 Citations (Scopus)

Drift-wave eigenmodes in toroidal plasmas

Chen, L. & Cheng, C. Z., 1980 Jan 1, In : Physics of Fluids. 23, 11, p. 2242-2249 8 p.

Research output: Contribution to journalArticle

toroidal plasmas
slabs
damping
shear
1 Citation (Scopus)
Open Access
solar activity
temperature profile
temperature profiles
ionospheres
ionosphere
29 Citations (Scopus)

Is Te equal to Tnm at the heights of 100 to 120 km?

Koichiro, O., Hirao, K., Banks, P. M. & Williamson, P. R., 1980 Jan 1, In : Planetary and Space Science. 28, 3, p. 207-211 5 p.

Research output: Contribution to journalArticle

electron energy
temperature profile
electron
temperature profiles
E region
26 Citations (Scopus)

Unstable universal drift eigenmodes in toroidal plasmas

Cheng, C. Z. & Chen, L., 1980 Jan 1, In : Physics of Fluids. 23, 9, p. 1770-1773 4 p.

Research output: Contribution to journalArticle

toroidal plasmas
Landau damping
slabs
damping
shear
1981
38 Citations (Scopus)

Acceleration of heavy ions on auroral field lines

Ashour‐Abdalla, M., Okuda, H. & Cheng, C-Z., 1981 Jan 1, In : Geophysical Research Letters. 8, 7, p. 795-798 4 p.

Research output: Contribution to journalArticle

heavy ions
cyclotrons
ion
oxygen
hydrogen
13 Citations (Scopus)

Anomalous diffusion and ion heating in the presence of electrostatic hydrogen cyclotron instabilities

Okuda, H., Cheng, C-Z. & Lee, W. W., 1981 Jan 1, In : Physical review letters. 46, 6, p. 427-430 4 p.

Research output: Contribution to journalArticle

cyclotrons
electrostatics
heating
hydrogen
ions
24 Citations (Scopus)

Ballooning-mode theory of trapped-electron instabilities in tokamaks

Cheng, C-Z. & Chen, L., 1981 Jan 1, In : Nuclear Fusion. 21, 3, p. 403-408 6 p.

Research output: Contribution to journalArticle

ballooning modes
electrons
differential equations
formalism
perturbation

Effect of collisions on ion gyroresonance

Shaing, K. C. & Callen, J. D., 1981 Jan 1, In : Physics of Fluids. 24, 11, p. 2119-2120 2 p.

Research output: Contribution to journalArticle

collisions
Fokker-Planck equation
ions
operators
perturbation

Effects of the fast wave on the drift-cyclotron loss-cone mode

Shaing, K. C., 1981 Jan 1, In : Physics of Fluids. 24, 7, p. 1299-1302 4 p.

Research output: Contribution to journalArticle

cyclotrons
cones
electric field strength
ions
orbits
28 Citations (Scopus)

Electrical behavior of a Shuttle Electrodynamic Tether System (SETS)

Banks, P. M., Williamson, P. R. & Oyama, K. I., 1981 Feb, In : Planetary and Space Science. 29, 2, p. 139-147 9 p.

Research output: Contribution to journalArticle

electrodynamics
plasma
tethered satellites
electron
space plasmas
28 Citations (Scopus)

Electrostatic drift wave eigenmodes in tokamaks

Cheng, C. Z. & Tsang, K. T., 1981 Jun, In : Nuclear Fusion. 21, 6, p. 643-650 8 p.

Research output: Contribution to journalArticle

ion temperature
temperature gradients
electrostatics
ballooning modes
ions

Interaction of lower hybrid wave fields with drift-cyclotron loss-cone instability

Shaing, K. C., 1981 Jan 1, In : Physics of Fluids. 24, 7, p. 1292-1298 7 p.

Research output: Contribution to journalArticle

cyclotrons
cones
interactions
stabilization
electrostatics
16 Citations (Scopus)

Numerical simulations of electrostatic hydrogen cyclotron instabilities

Okuda, H., Cheng, C. Z. & Lee, W. W., 1981 Jan 1, In : Physics of Fluids. 24, 6, p. 1060-1068 9 p.

Research output: Contribution to journalArticle

cyclotrons
electrostatics
hydrogen
space plasmas
electrons
3 Citations (Scopus)

SHUTTLE ORBITER TETHERED SUBSATELLITE FOR EXPLORING AND TAPPING SPACE PLASMAS.

Banks, P. M., Williamson, P. R. & Oyama, K. I., 1981 Jan 1, In : Astronautics & aeronautics New York, N.Y.. 19, 2, p. 31-33 3 p.

Research output: Contribution to journalArticle

Electrodynamics
Plasmas
Physics
Wire
Magnetosphere
1982
9 Citations (Scopus)

Boundary layer corrections to neoclassical ripple transport in tokamaks

Shaing, K. C. & Callen, J. D., 1982 Jan 1, In : Physics of Fluids. 25, 6, p. 1012-1019 8 p.

Research output: Contribution to journalArticle

ripples
boundary layers
trapped particles
distribution functions
field coils
2 Citations (Scopus)

Energy distribution of thermal electrons at the height of lower-E-region

Oyama, K. I. & Hirao, K., 1982, In : Advances in Space Research. 2, 10, p. 89-91 3 p.

Research output: Contribution to journalArticle

E region
energy distribution
Electron temperature
electron
Electrons
9 Citations (Scopus)

Floating potential and return current measurements in a rocket‐borne electron beam experiment

Kawashima, N., Sasaki, S., Oyama, K., Akai, K. & Nakai, Y., 1982 Sep, In : Geophysical Research Letters. 9, 9, p. 1061-1063 3 p.

Research output: Contribution to journalArticle

floating
rockets
electron beams
electron
experiment
32 Citations (Scopus)

High-n collisionless ballooning modes in axisymmetric toroidal plasmas

Cheng, C-Z., 1982 Jan 1, In : Nuclear Fusion. 22, 6, p. 773-785 13 p.

Research output: Contribution to journalArticle

ballooning modes
toroidal plasmas
ions
Larmor radius
electrons
75 Citations (Scopus)

Kinetic theory of collisionless ballooning modes

Cheng, C. Z., 1982 Jan 1, In : Physics of Fluids. 25, 6, p. 1020-1026 7 p.

Research output: Contribution to journalArticle

ballooning modes
kinetic theory
Larmor radius
ions
retaining
3 Citations (Scopus)
1983
16 Citations (Scopus)

Calculation of parallel viscosity in the plateau regime

Shaing, K. C. & Callen, J. D., 1983 Jan 1, In : Physics of Fluids. 26, 6, p. 1526-1527 2 p.

Research output: Contribution to journalArticle

aspect ratio
plateaus
viscosity

EBT stability theory

Berk, H. L., Van Dam, J. W., Rosenbluth, M. N., Spong, D. A. & Cheng, C-Z., 1983 Mar 15, In : Nuclear Instruments and Methods In Physics Research. 207, 1-2, p. 267-270 4 p.

Research output: Contribution to journalArticle

Interchanges
Hot electrons
Cyclotrons
Plasma stability
Ions
9 Citations (Scopus)

Finite Larmor radius stability theory of ELMO Bumpy Torus plasmas

Berk, H. L., Cheng, C. Z., Rosenbluth, M. N. & Van Dam, J. W., 1983 Jan 1, In : Physics of Fluids. 26, 9, p. 2642-2651 10 p.

Research output: Contribution to journalArticle

Larmor radius
hot electrons
curvature
pressure gradients
formalism
190 Citations (Scopus)

Neoclassical flows and transport in nonaxisymmetric toroidal plasmas

Shaing, K. C. & Callen, J. D., 1983 Jan 1, In : Physics of Fluids. 26, 11, p. 3315-3326 12 p.

Research output: Contribution to journalArticle

toroidal plasmas
magnetohydrodynamic flow
transport theory
moments
87 Citations (Scopus)

Neoclassical transport in a multiple-helicity torsatron in the low-collisionality (1/ν) regime

Shaing, K. C. & Hokin, S. A., 1983 Jan 1, In : Physics of Fluids. 26, 8, p. 2136-2139 4 p.

Research output: Contribution to journalArticle

stellarators
heat flux
optimization
magnetic fields
6 Citations (Scopus)

Nonthermal Components of Low Energy Electrons in the Ionospheric E and F Region

Oyama, K. I., Hirao, K., Banks, P. M. & Williamson, P. R., 1983 Jan, In : Journal of geomagnetism and geoelectricity. 35, 6, p. 185-200 16 p.

Research output: Contribution to journalArticle

Open Access
E region
F region
ionospherics
electron energy
electron