title: Lithium plasma emitter for collisionless magnetized plasma experiment.
abstract: 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%.
authors.affiliation: Institute of Space, Astrophysical and Plasma Sciences, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Eiichirou
authors.initials: E
authors.lastname: Kawamori
authors.forename: Jyun-Yi
authors.initials: JY
authors.lastname: Lee
authors.forename: Yi-Jue
authors.initials: YJ
authors.lastname: Huang
authors.forename: Wun-Jheng
authors.initials: WJ
authors.lastname: Syugu
authors.forename: Sung-Xuang
authors.initials: SX
authors.lastname: Song
authors.forename: Tung-Yuan
authors.initials: TY
authors.lastname: Hsieh
authors.forename: C Z
authors.initials: CZ
authors.lastname: Cheng