@article{oai:nifs-repository.repo.nii.ac.jp:00011101,
 author = {TOI, Kazuo and ONCHI, Takumi and KURODA, Kengo and KURODA, kengoh and KOJIMA, Shinichiro and ZUSHI, Hideki and HASEGAWA, Makoto and FUKUYAMA, Masaharu and KAWASAKI, Shoji and HIGASHIJIMA, Aki and IKEZOE, Tatsuya and IDEI,  Hiroshi and IDO,  Takeshi and HANADA, Kazuaki and QUEST Experiment Group},
 issue = {Special Issue 1},
 journal = {Plasma and Fusion Research},
 month = {May},
 note = {0000-0002-8244-8305, A novel divertor biasing using four biasing plates that are arranged toroidally every 90° on the upper divertor plate is applied to low-density plasmas of the QUEST spherical tokamak. When some of these plates are biased in-phase by applying a sawtooth waveform voltage of 85-V amplitude and 50-Hz repetition, up to approximately 35% reduction of the particle flux to the divertor is observed during positive biasing. The input power for the flux reduction is approximately 0.2 kW for low-density tokamak plasmas produced by ∼130-kW electron cyclotron wave injection. Additionally, the signal of a plate probe placed in the low-field side of the mid-plane of the vacuum vessel indicates enhanced losses of fast electrons during positive biasing. The enhanced loss is attributed to small resonant magnetic perturbations produced by the bias-driven currents in the scrape-off layer. This novel divertor biasing is expected to provide a new experimental tool for studying divertor heat load control and fast electron confinement in a tokamak device.},
 title = {Effects of Toroidally Distributed Divertor Biasing on Scrape-Off-Layer Plasma in the QUEST Spherical Tokamak},
 volume = {16},
 year = {2021}
}