Oohara Wataru, Hatakeyama Rikizo
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan.
Phys Rev Lett. 2003 Nov 14;91(20):205005. doi: 10.1103/PhysRevLett.91.205005.
We have developed a novel method for generating pure pair plasma which consists of positive- and negative-charged particles with an equal mass. The pair-ion plasma without electrons is generated using fullerene as an ion source through the processes of hollow-electron-beam impact ionization, electron attachment, preferential radial diffusion of ions, and resultant electron separation in an axial magnetic field. Basic characteristics of this plasma are discussed in terms of the differences from ordinary electron-ion plasmas, such as a phenomenon in the absence of sheath and potential structure formation.
我们开发了一种生成纯对等离子体的新方法，该等离子体由质量相等的带正电和带负电的粒子组成。通过空心电子束碰撞电离、电子附着、离子优先径向扩散以及在轴向磁场中产生的电子分离等过程，以富勒烯作为离子源来产生无电子的对离子等离子体。根据与普通电子 - 离子等离子体的差异，讨论了这种等离子体的基本特性，例如不存在鞘层和电势结构形成的现象。
