TY - GEN
T1 - Small helicon source for electrocleless plasma production and electromagnetic acceleration
AU - Toki, Kyoichiro
AU - Hashimoto, Takashi
AU - Makita, Kenji
AU - Shinohara, Shunjiro
AU - Hada, Tohru
AU - Ikeda, Yasushi
AU - Tanikawa, Takao
AU - Shamrai, Konstantin P.
AU - Funaki, Ikkho
PY - 2006/12/1
Y1 - 2006/12/1
N2 - A compact helicon source having an inner diameter of 2.5 cm with 46 cm long glass tube was investigated using a Boswell type antenna. Argon gas was fed into the glass tube from the upstream end at inner pressures, 10-40 mTorr corresponding to the mass flow rates, 0.5-2 mg/s. Two apparent jumps were observed with increasing RF power. The first jump took place at about 200 W RF input, from capacitively coupled plasma (CCP) to inductively coupled plasma (ICP), and the second jump was encountered at about 500 W RF input power from ICP to presumably the helicon mode. The maximum applied magnetic field was 800 gauss. The achieved plasma density exceeded 1013 cm-3 at the expected helicon mode. Based upon this result, a few concepts of electrodeless plasma acceleration techniques were suggested and also simulated by analyses. A preliminary experiment of the acceleration for proof-of-concept was conducted.
AB - A compact helicon source having an inner diameter of 2.5 cm with 46 cm long glass tube was investigated using a Boswell type antenna. Argon gas was fed into the glass tube from the upstream end at inner pressures, 10-40 mTorr corresponding to the mass flow rates, 0.5-2 mg/s. Two apparent jumps were observed with increasing RF power. The first jump took place at about 200 W RF input, from capacitively coupled plasma (CCP) to inductively coupled plasma (ICP), and the second jump was encountered at about 500 W RF input power from ICP to presumably the helicon mode. The maximum applied magnetic field was 800 gauss. The achieved plasma density exceeded 1013 cm-3 at the expected helicon mode. Based upon this result, a few concepts of electrodeless plasma acceleration techniques were suggested and also simulated by analyses. A preliminary experiment of the acceleration for proof-of-concept was conducted.
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M3 - Conference contribution
AN - SCOPUS:34249339051
SN - 1563478188
SN - 9781563478185
T3 - Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
SP - 5156
EP - 5163
BT - Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
T2 - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
Y2 - 9 July 2006 through 12 July 2006
ER -