Hydrogen and helium recycling from a JxB-force convected liquid metal Ga67In20.5Sn12.5 under steady state plasma bombardment

作者：Hirooka Yoshi; Bi Hailin; Shimada Michiya; Ono Masa

来源：Fusion Engineering and Design, 2017, 117: 140-144.

DOI：10.1016/j.fusengdes.2016.06.028

• Magnetic fusion reactors
• Plasma-facing components
• Plasma-surface interactions
• Divertors
• Liquid metals

A series of first-of-a-kind laboratory-scale experiments on the JxB-force convected liquid metal divertor concept have been carried out in the temperature range from room temperature to similar to 200 degrees C, employing a eutectic alloy: Ga67In20.5Sn12.5, the melting point of which is 10.5 degrees C. The electrical current conducted through the alloy is set at about 70A and the magnetic field is set at about 700 G. It has reproducibly been observed that hydrogen as well as helium particle recycling is noticeably reduced under steady state plasma bombardment when the liquid is convected by the JxB force.