Nonlinear acceleration of the electron inertia-dominated magnetohydrodynamic modes due to electron parallel compressibility

Matsumoto, Taro; Naito, Hiroshi*; Tokuda, Shinji; Kishimoto, Yasuaki

Physics of Plasmas, 12(9), p.092505_1 - 092505_7, 2005/09

https://doi.org/10.1063/1.2042167

The behavior of the collisionless magnetohydrodynamics modes is investigated by the gyro-kinetic particle simulation in a cylindrical tokamak plasma in the parameter region where the effects of electron inertia and electron parallel compressibility are competitive for magnetic reconnection. Although the linear growth of the internal kink-tearing mode is dominated by the electron inertia, it is found that the growth rate can be nonlinearly accelerated due to the electron parallel compressibility proportional to the ion sound Larmor radius . It is also found that, as decreasing the electron skin depth , the maximum growth rate before the internal collapse saturates independently of the microscopic scales such as and . The acceleration of growth rate is also observed in the nonlinear phase of the double tearing mode.

Gyro-kinetic particle simulation of m=1 internal kink mode in the presence of density gradient

Matsumoto, Taro; Tokuda, Shinji; Kishimoto, Yasuaki; Takizuka, Tomonori; Naito, Hiroshi*

Purazuma, Kaku Yugo Gakkai-Shi, 75(10), P. 1194, 1999/10

https://doi.org/10.1585/jspf.75.1188

no abstracts in English

Stability analysis of ITER plasmas with H-mode profiles

Tokuda, Shinji; Ozeki, Takahisa

JAERI-Research 94-030, 13 Pages, 1994/11

JAERI-Research-94-030.pdf:0.62MB

no abstracts in English

Sawtooth oscillations in tokamaks

Tsuji, Shunji; Azumi, Masafumi

Kaku Yugo Kenkyu, 61(5), p.287 - 306, 1989/05

https://doi.org/10.1585/jspf1958.61.287

no abstracts in English

MHD Stability Analysis by Revised Version of ERATO-J

; Tsunematsu, Toshihide; ; ; *; Takeda, Tatsuoki

JAERI-M 9899, 56 Pages, 1982/01

JAERI-M-9899.pdf:1.34MB

no abstracts in English