Beckers J, Trienekens D J M, Kroesen G M W
Eindhoven University of Technology, Department of Applied Physics, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands.
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Nov;88(5):055101. doi: 10.1103/PhysRevE.88.055101. Epub 2013 Nov 19.
We present an absolute measurement of the total ion-drag force on one single microparticle at the edge of the dust free region in low pressure complex plasmas: the void. In order to do so, the particle confinement position was monitored as a function of the gas pressure for two particle sizes under normal gravity conditions and under microgravity conditions during parabolic flights. At the border of the void, the ion-drag force on a particle with a radius of 4.90 μm appeared to be (3.6±0.3)×10(-12) N.
我们给出了在低压复杂等离子体中无尘埃区域（即空隙）边缘单个微粒上总离子拖曳力的绝对测量值。为此，在正常重力条件下以及抛物线飞行期间的微重力条件下，监测了两种粒径微粒的约束位置随气压的变化。在空隙边界处，半径为4.90μm的微粒上的离子拖曳力似乎为(3.6±0.3)×10⁻¹² N。
