Search Results - "Todoroki, Jiro"

Integration Formula of the Magnetic Field Produced by the Finite Size Helical Coil with Arbitrary Polygonal Cross Section by Todoroki, Jiro

“…The formulae for calculating the magnetic field produced by the finite size helical coil with rectangular cross section [J. Todoroki: Kakuyugo Kenkyu 57 (1987)…”
Get full text

Influence of numerical integration on convergence of eigenvalues in magnetohydrodynamics stability analysis by IDA, A, TODOROKI, J, SANUKI, H

“…When the eigenvalue problem of the linearized magnetohydrodynamics equation is solved by finite-element methods, whether energy integrals are exactly carried…”
Get full text

Comment to Paper Y. Nakamura et al. “Study of MHD Equilibrium and Stability with Improved Stellarator Expansion Approach (STEP Code)” by Todoroki, Jiro

Get full text

Averaged Resistive MHD Equations by TODOROKI, J

“…Averaged resistive MHD equations are derived by using the Lagrangianformalism. The assumption is that the perturbation is of singletoroidal harmonics on the…”
Get full text

Adiabatic invariant and evaluation of particle loss in Helical torus by TODOROKI, J

“…Analytic expression for the longitudinal adiabatic invariant is derived for general magnetic configuration. The orbit loss is evaluated to determine the…”
Get full text

Theory of longitudinal adiabatic invariant in the helical torus by TODOROKI, J

“…The theory on the longitudinal adiabatic invariant valid for the helical magnetic field is developed on the basis of the variable transformation from the…”
Get full text

On the Lagrangian of the linearized MHD equations by TODOROKI, J

“…The Lagrangian for the linearized, ideal and resistive magnetohydrodynamic (MHD) equations is discussed by introducing the perturbation of the total pressure…”
Get full text

Extension of stellarator approximation in magnetohydrodynamic equilibrium and stability of toroidal helical systems by TODOROKI, J

“…Formulation is made to solve three dimensional MHD equilibrium problem on the basis of the coordinate transformation. The three dimensional problem is divided…”
Get full text

Averaging method for studying magnetohydrodynamic equilibrium and stability of toroidal helical systems by TODOROKI, J

“…Formulae of stellarator approximation valid for finite aspect ratio helical tori are derived by using coordinate transformation and method of averaging. The…”
Get full text

Stability of Modified Bumpy Torus by Todoroki, Jiro

“…Stability of long wave length toroidal theta pinch with l=0, l=±1, and l=±2 corrugating magnetic field is investigated with the aid of the sharp…”
Get full text

Variational Method in the Transport Theory of an Axisymmetric Toroidal Plasma by Todoroki, Jiro

“…Neoclassical transport in an axisymmetric toroidal plasma is considered. By determining the poloidal dependence of ion mean velocity along the magnetic lines…”
Get full text

Perturbation Theory of the Nonlinear Plasma Wave with Landau Damping by Sanuki, Heiji, Todoroki, Jiro

“…A generalized Korteweg-de Vries type equation is obtained for small but finite amplitude waves in plasma by treating the Vlasov equation perturbation…”
Get full text

Effects of Landau Damping on Nonlinear Wave Modulation in Plasma by Sanuki, Heiji, Shimizu, Katsuya, Todoroki, Jiro

“…On the basis of the Vlasov equation, an equation to describe behaviour of the electric potential is obtained for small but finite amplitude waves in a plasma…”
Get full text

Acceleration of Electrons by Electrostatic Waves Propagating Perpendicular to a Magnetic Field. An Acceleration Mechanism for Hot Electrons Produced by a Slow Theta-Pinch by Todoroki, Jiro, Sato, Masatomo, Shimizu, Katsuya

“…A kinetic equation is derived which describes the interaction of electrons with electrostatic waves excited in a plasma; the waves have frequencies close to…”
Get full text

High Frequency Electrostatic Instabilities in a Plasma with a Small Fraction of Hot Electrons by Shimizu, Katsuya, Todoroki, Jiro, Sato, Masatomo

“…The electrostatic instabilities with frequencies close to the integral multiples of the electron gyrofrequency (Ω) are considered for a plasma in a uniform…”
Get full text