Kawamori Eiichirou, Lee Jyun-Yi, Huang Yi-Jue, Syugu Wun-Jheng, Song Sung-Xuang, Hsieh Tung-Yuan, Cheng C Z
Institute of Space, Astrophysical and Plasma Sciences, National Cheng Kung University, Tainan, Taiwan.
Rev Sci Instrum. 2011 Sep;82(9):093502. doi: 10.1063/1.3632981.
This paper presents a newly developed lithium plasma emitter, which can provide quiescent and low-temperature collisionless conditions for magnetized plasma experiments. This plasma emitter generates thermal emissions of lithium ions and electrons to produce a lithium plasma. Lithium type beta-eucryptite and lanthanum-hexaboride (LaB(6)) powders were mixed and directly heated with a tungsten heater to synthesize ion and electron emissions. As a result, a plasma with a diameter of ~15 cm was obtained in a magnetic mirror configuration. The typical range of electron density was 10(12)-10(13) m(-3) and that of electron temperature was 0.1-0.8 eV with the emitter operation temperature of about 1500 K. The amplitude fluctuations for the plasma density were lower than 1%.
本文介绍了一种新开发的锂等离子体发射器，它可以为磁化等离子体实验提供静态和低温无碰撞条件。这种等离子体发射器产生锂离子和电子的热发射以产生锂等离子体。将锂型β-锂霞石和六硼化镧（LaB₆）粉末混合，并用钨加热器直接加热以合成离子和电子发射。结果，在磁镜配置中获得了直径约为15厘米的等离子体。电子密度的典型范围是10¹² - 10¹³ m⁻³，电子温度的典型范围是0.1 - 0.8 eV，发射器的运行温度约为1500 K。等离子体密度的幅度波动低于1%。
