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Journal Articles

Outgassing of lower hybrid antenna modules during high-power long-pulse transmission

Goniche, M.*; Kazarian, F.*; Bibet, P.*; Maebara, Sunao; Seki, Masami; Ikeda, Yoshitaka; Imai, Tsuyoshi*

Journal of Vacuum Science and Technology A, 23(1), p.55 - 65, 2005/01

 Times Cited Count:2 Percentile:9.78(Materials Science, Coatings & Films)

Outgassing rates have been measured for long duration (100-4700 seconds) of RF transmission at high power density (50-200 MW/m$$^{2}$$) for waveguides made of OFHC copper, dispersoid copper, copper-coated carbon fiber composite and copper-coated graphite. The measurements were performed on multi-waveguide(2 to 8)mockups, using a test bed facility equipped with a 3.7 GHz klystron. The effect on the outgassing rate of waveguide surface temperature and of initial wall gas loading('conditioning'), is examined. It is concluded that an outgassing rate of 1$$times$$10$$^{-5}$$ Pam$$^{3}$$s$$^{-1}$$m$$^{-2}$$ and 5$$times$$10$$^{-5}$$ Pam$$^{3}$$s$$^{-1}$$m$$^{-2}$$ at 300$$^{circ}$$C and 400$$^{circ}$$C respectively, can be expected for the tested material. Based on these measurement results, it is further concluded that no additional pumping will be needed for the LHRF antenna proposed for ITER.

Journal Articles

Design of ITER-FEAT RF heating and current drive systems

Bosia, G.*; Ioki, Kimihiro*; Kobayashi, Noriyuki*; Bibet, P.*; Koch, R.*; Chavan, R.*; Tran, M. Q.*; Takahashi, Koji; Kuzikov, S.*; Vdovin, V.*

Proceedings of IAEA 18th Fusion Energy Conference (CD-ROM), 6 Pages, 2001/00

no abstracts in English

Journal Articles

Outgassing of plasma facing antenna front for lower hybrid wave launcher

Maebara, Sunao; Goniche, M.*; Kazarian, F.*; Seki, Masami; Ikeda, Yoshitaka; Imai, Tsuyoshi; Bibet, P.*; Froissard, P.*; Rey, G.*

Fusion Engineering and Design, 49-50, p.269 - 273, 2000/11

 Times Cited Count:4 Percentile:33.53(Nuclear Science & Technology)

no abstracts in English

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