Localized electron heating by strong guide-field magnetic reconnection.

Autor: Xuehan Guo, Michiaki Inomoto, Takumichi Sugawara, Kotaro Yamasaki, Tomohiko Ushiki, Yasushi Ono
Předmět:
Zdroj: Physics of Plasmas; 2015, Vol. 22 Issue 10, p1-7, 7p, 1 Color Photograph, 1 Diagram, 5 Graphs
Abstrakt: Localized electron heating of magnetic reconnection was studied under strong guide-field using two merging spherical tokamak plasmas in the University of Tokyo Spherical Tokamak experiment. Our new slide-type two-dimensional Thomson scattering system is documented for the first time the electron heating localized around the X-point. Shape of the high electron temperature area does not agree with that of energy dissipation term Et · jt. If we include a guide-field effect term Bt/(Bp + αBt) for Et · jt, the energy dissipation area becomes localized around the X-point, suggesting that the electrons are accelerated by the reconnection electric field parallel to the magnetic field and thermalized around the X-point. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index