Characterisation of negative ion beam focusing based on phase space structure von Haba, Yasuaki, Nagaoka, Kenichi, Tsumori, Katsuyoshi, Kisaki, Masashi, Nakano, Haruhisa, Ikeda, Katsunori, Osakabe, Masaki

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Abundance ratio of multiple velocity distribution components in a single negative ion beamlet produced by a cesium-seeded negative ion source von Haba, Yasuaki, Aramaki, Mitsutoshi, Tsumori, Katsuyoshi, Osakabe, Masaki, Ikeda, Katsunori, Nakano, Haruhisa, Nagaoka, Kenichi

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Spatiotemporal oscillation of an ion beam extracted from a potential-oscillating plasma source von Takahashi, Kazunori, Imagi, Tsuyoshi, Ishitomi, Masashi, Nagaoka, Kenichi, Haba, Yasuaki, Nakano, Haruhisa, Ando, Akira, Kisaki, Masashi, Tsumori, Katsuyoshi, Ikeda, Katsunori

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New Method to Evaluate Negative-Ion Density Using Conventional Langmuir Probe von RATTANAWONGNARA, Engrhyt, OSAKABE, Masaki, MASAKI, Shingo, TSUMORI, Katsuyoshi, NAKANO, Haruhisa, NAGAOKA, Kenichi, IKEDA, Katsunori, TAKEIRI, Yasuhiko

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Demonstration of Beam Optics Optimization Using Plasma Grid Bias in a Negative Ion Source von KISAKI, Masashi, IKEDA, Katsunori, NAKANO, Haruhisa, TSUMORI, Katsuyoshi, FUJIWARA, Yutaka, HABA, Yasuaki, KAMIO, Shuji, NAGAOKA, Kenichi, OSAKABE, Masaki

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Recent Studies of Hydrogen Negative Ion Source and Beam Production for NBI in Large Helical Device von IKEDA, Katsunori, GENG, Shaofei, TSUMORI, Katsuyoshi, NAKANO, Haruhisa, KISAKI, Masashi, NAGAOKA, Kenichi, OSAKABE, Masaki, KANEKO, Osamu, TAKEIRI, Yasuhiko

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Depth of Influence on the Plasma by Beam Extraction in a Negative Hydrogen Ion Source for NBI von GENG, Shaofei, TSUMORI, Katsuyoshi, NAKANO, Haruhisa, KISAKI, Masashi, IKEDA, Katsunori, OSAKABE, Masaki, NAGAOKA, Ken-ichi, TAKEIRI, Yasuhiko, SHIBUYA, Masayuki, KANEKO, Osamu

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Spatial Distributions of Charged Particles and Plasma Potential before and during Beam Extraction in a Negative Hydrogen Ion Source for NBI von GENG, Shaofei, TSUMORI, Katsuyoshi, NAKANO, Haruhisa, KISAKI, Masashi, TAKEIRI, Yasuhiko, OSAKABE, Masaki, IKEDA, Katsunori, NAGAOKA, Ken-ichi, KANEKO, Osamu, SHIBUYA, Masayuki, Group, NIFS NBI

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Visualization of H− Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy von IKEDA, Katsunori, NAKANO, Haruhisa, TSUMORI, Katsuyoshi, KISAKI, Masashi, NAGAOKA, Kenichi, OSAKABE, Masaki, TAKEIRI, Yasuhiko, KANEKO, Osamu

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Recent results from deuterium experiments on the large helical device and their contribution to fusion reactor development von Osakabe, Masaki, Takahashi, Hiromi, Yamada, Hiroshi, Tanaka, Kenji, Kobayashi, Tatsuya, Ida, Katsumi, Ohdachi, Satoshi, Varela, Jacobo, Ogawa, Kunihiro, Kobayashi, Masahiro, Tsumori, Katsuyoshi, Ikeda, Katsunori, Masuzaki, Suguru, Tanaka, Masahiro, Nakata, Motoki, Murakami, Sadayoshi, Inagaki, Shigeru, Mukai, Kiyofumi, Sakamoto, Mizuki, Nagasaki, Kazunobu, Suzuki, Yasuhiro, Isobe, Mitsutaka, Morisaki, Tomohiro, LHD Experiment Group, the

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Development of the Heating Scenarios to Achieve High-Ion Temperature Plasma in the Large Helical Device von TAKEIRI, Yasuhiko, KANEKO, Osamu, OSAKABE, Masaki, NAGAOKA, Kenichi, MURAKAMI, Sadayoshi, TAKAHASHI, Hiromi, NAKANO, Haruhisa, IDA, Katsumi, MORITA, Shigeru, YOKOYAMA, Masayuki, YOSHINUMA, Mikiro, FUJII, Keisuke, GOTO, Motoshi, SUZUKI, Chihiro, SEKI, Ryosuke, TSUMORI, Katsuyoshi, IKEDA, Katsunori, KISAKI, Masashi, MUTOH, Takashi, YAMADA, Hiroshi, KOMORI, Akio, Group, the LHD Experiment

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Experimental evaluation of negative ion beamlet stability von Haba, Yasuaki, Nagaoka, Kenichi, Tsumori, Katsuyoshi, Kisaki, Masashi, Nakano, Haruhisa, Ikeda, Katsunori, Yoshimura, Shinji, Osakabe, Masaki

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Evaluation of beam optical properties based on phase space structure of negative ion beams for plasma heating von Haba, Yasuaki, Nagaoka, Kenichi, Tsumori, Katsuyoshi, Kisaki, Masashi, Nakano, Haruhisa, Ikeda, Katsunori, Osakabe, Masaki

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Exploring deuterium beam operation and the behavior of the co-extracted electron current in a negative-ion-based neutral beam injector von Ikeda, K., Tsumori, K., Nakano, H., Kisaki, M., Nagaoka, K., Kamio, S., Fujiwara, Y., Haba, Y., Osakabe, M.

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Extension of high power deuterium operation of negative ion based neutral beam injector in the large helical device von Ikeda, K., Tsumori, K., Nagaoka, K., Nakano, H., Kisaki, M., Fujiwara, Y., Kamio, S., Haba, Y., Masaki, S., Osakabe, M.

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Experimental evaluation of beam characteristics of negative-hydrogen-ion beam for plasma heating von Haba, Yasuaki, Nagaoka, Kenichi, Tsumori, Katsuyoshi, Kisaki, Masashi, Nakano, Haruhisa, Ikeda, Katsunori, Fujiwara, Yutaka, Kamio, Shuji, Yoshimura, Shinji, Osakabe, Masaki

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Behavior of Negative Ion and Secondary Particles in Multi-Aperture Accelerator von KISAKI, Masashi, VELTRI, Pierluigi, AGOSTINETTI, Piero, TSUMORI, Katsuyoshi, IKEDA, Katsunori, NAKANO, Haruhisa, SERIANNI, Gianluigi, OSAKABE, Masaki, NAGAOKA, Kenichi, TAKEIRI, Yasuhiko, KANEKO, Osamu

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Beam instability in the vicinity of beam extraction region of negative ion source von Nagaoka, K., Nakamoto, R., Sasaki, T., Hamajima, T., Nakano, H., Ikeda, K., Fujiwara, Y., Osakabe, M., Takeiri, Y., Tsumori, K.

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Difference of co-extracted electron current and beam acceleration in a negative ion source with hydrogen-isotope ions von Ikeda, K., Tsumori, K., Nakano, H., Nagaoka, K., Takeiri, Y., Masaki, S., Rattanawongnara, E., Osakabe, M.

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Improvement of Plasma Performance Using Carbon Pellet Injection in Large Helical Device von Morita, Shigeru, Goto, Motoshi, Nagaoka, Kenichi, Dong, Chunfeng, Zhou, Hangyu, Cui, Zhengying, Dong, Yunbo, Gao, Xiang, Ida, Katsumi, Ikeda, Katsunori, Kaneko, Osamu, Lin, Shiyao, Nakano, Haruhisa, Osakabe, Masaki, Sakamoto, Ryuichi, Takeiri, Yasuhiko, Ti, Ang, Tsumori, Katsuyoshi, Yoshinuma, Mikiro, group, LHD experiment

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