@article{cab05502372847edbd7e030e7b385d38,
title = "Dependence of plasma parameters in hydrogen discharges on magnetic field configuration and neutral pressure in the DT-ALPHA device",
abstract = "The dependence of hydrogen plasma parameters on magnetic field configuration and neutral pressure was investigated in the radio-frequency (RF) plasma source DT-ALPHA. It was found that higher electron density was obtained when the lower hybrid resonance condition was satisfied near the RF antenna. It was also found that use of lower hydrogen neutral pressure yielded higher electron density plasma. By optimizing the resonance condition and neutral pressure, the hydrogen plasma of Te ~ 10 eV and ne > 1 x 1017 m-3 was achieved.",
keywords = "DT-ALPHA, Divertor, Hydrogen plasma, Radio-frequency plasma, Volumetric recombination",
author = "Tomohiro Seino and Hiroyuki Takahashi and Peerapat Boonyarittipong and Takeshi Saikyo and Kenta Ogasawara and Atsushi Okamoto and Sumio Kitajima and Kenji Tobita",
note = "Funding Information: The work is partly supported by Japan Society for the Promotion of Science (JSPS) Grants-in-Aid for Scientific Research (KAKENHI) grant numbers Grant-in-Aid for Young Scientists (B) 17K14895 and Grant-in-Aid for Scientific Research (B) 20H01883. This work is also supported by the NIFS Collaboration Research program (NIFS18KLER080). Publisher Copyright: {\textcopyright} 2020 The Japan Society of Plasma Science and Nuclear Fusion Research.",
year = "2020",
doi = "10.1585/PFR.15.1201056",
language = "English",
volume = "15",
journal = "Plasma and Fusion Research",
issn = "1880-6821",
publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",
}