Collision effects on the saturated electrostatic potential along a magnetic field line | Zendy

I. Katanuma | Zendy; Y. Tatematsu | Zendy; K. Ishii | Zendy; T. Saito | Zendy; K. Yatsu | Zendy

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Collision effects on the saturated electrostatic potential along a magnetic field line

Author(s) -

I. Katanuma,

Y. Tatematsu,

K. Ishii,

T. Saito,

K. Yatsu

Publication year - 2003

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.1544536

Subject(s) - physics , collisionality , coulomb , coulomb collision , monte carlo method , electric field , electric potential , ion , atomic physics , magnetic field , range (aeronautics) , electron , electrostatics , plasma , voltage , quantum mechanics , composite material , tokamak , statistics , mathematics , materials science

The Coulomb collision effects on a saturated electrostatic potential (plug potential) formation in the end-mirror cell of a tandem mirror were investigated by a Monte Carlo simulation of ion orbits. A non-Maxwellian electron distribution function, which leads to a modified Boltzmann law, is assumed to obtain the electrostatic potential. An ion velocity distribution is determined by the Monte Carlo simulation of ions. It was found that a saturated electrostatic potential is formed in a wide range of the Coulomb collisionality. Especially, fewer Coulomb collisions were found to create a higher saturated electrostatic potential along a magnetic field, although the Coulomb collisions are necessary for a saturated electrostatic potential formation

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