Space Plasma, Power and Propulsion Laboratory, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia.
Phys Rev Lett. 2011 Dec 2;107(23):235001. doi: 10.1103/PhysRevLett.107.235001. Epub 2011 Nov 28.
The axial force imparted from a magnetically expanding current-free plasma is directly measured for three different experimental configurations and compared with a two-dimensional fluid theory. The force component solely resulting from the expanding field is directly measured and identified as an axial force produced by the azimuthal current due to an electron diamagnetic drift and the radial component of the magnetic field. The experimentally measured forces are well described by the theory.
从无电流的磁扩张等离子体施加的轴向力在三种不同的实验配置中进行了直接测量，并与二维流体理论进行了比较。仅由扩展场产生的力分量被直接测量并确定为由于电子抗磁性漂移和磁场的径向分量而产生的由轴向电流产生的轴向力。实验测量的力很好地被理论描述。
