JOURNAL OF NUCLEAR MATERIALS 463 233-236 2015年8月 [査読有り]
We have developed a unique experimental device of so-called double plasma gun, which consists of two magnetized coaxial plasma gun (MCPG) devices, in order to clarify effects of vapor shielding on material erosion due to transient events in magnet...
JOURNAL OF NUCLEAR MATERIALS 463 206-209 2015年8月 [査読有り]
Surface modifications of toughened, fine-grained, recrystallized tungsten (TFGR W) materials with 1.1 wt.% TiC and 3.3 wt.% TaC dispersoids due to repetitive ELM-like pulsed (similar to 0.15 ms) helium plasma irradiation have been investigated by ...
Effects of humidity and pre-discharges on repetitive partial discharge inception voltage (RPDIV) with twisted enameled wires under bipolar and unipolar impulse voltages have been investigated. The RPDIV under the bipolar impulse voltages have beco...
IEEJ Transactions on Fundamentals and Materials 134(9) 497-502 2014年
Coaxial Helicity Injection (CHI) is one of useful methods for start-up to spherical torus (ST) and spheromak plasmas. The new approach of CHI so called the Multi-pulsing CHI operation has been proposed for the purpose of achieving the quasi-steady...
IEEE TRANSACTIONS ON PLASMA SCIENCE 41(11) 3122-3128 2013年11月
Characterization of a pulsed plasma formed with a plasma gun device was performed. The averaged electron density was measured with an interferometer system using a Zeeman laser at 633 nm. It was found that the plasma with the density of similar to...