Y. Hamada
Kyoto University
14 Papers
171 Citations
Y. Hamada is an academic researcher from Kyoto University. The author has contributed to research in topics: Cyclotron resonance & Tokamak. The author has an hindex of 9, co-authored 14 publications.
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Papers
Toroidal Plasma Current Sustainment by Lower Hybrid Waves in the WT-2 Tokamak
Masanobu Nakamura,T. Cho,S. Kubo,Takashi Shimozuma,Hideki Kawai,K. Yamazaki,Taira Maekawa,Yasushi Terumichi,Y. Hamada,Shin-Ichi-Ro Tanaka +9 more
TL;DR: By injecting rf power near the lower hybrid frequency into an Ohmically heated plasma near the end of tokamak discharge in the WT-2, an rf-driven current-sustained plasma is produced and continues to exist during the rf injection period as discussed by the authors.
57
Microwave preionization of the tokamak discharge at the electron cyclotron resonance
TL;DR: In this article, it was shown that when ohmic heating power is applied during the microwave discharge at the electron cyclotron resonance, the plasma current and density build-up become fast and the loop voltage required to start the tokamak discharge decreases.
30
Study of low-frequency turbulence in the WT-1 tokamak plasma by CW FIR laser scattering
TL;DR: An experimental study of low-frequency turbulence with wavelengths ranging from 2.5 to 0.4 cm in the WT-1 Tokamak is carried out by HCN laser scattering as discussed by the authors.
20
Experimental Studies of Density Fluctuations in WT Tokamak by SMM Wave Scattering
TL;DR: In this article, a submillimeter wave scattering method was used to study low frequency, small scale, density fluctuations in plasmas and observed a microturbulence in a range of drift waves in the WT-1 and 2 tokamaks.
16
Electron cyclotron heating in the WT-1 tokamak
TL;DR: When a high power microwave is injected into a tokamak plasma, the intensities of microwave radiations emitted from the plasma and those of impurity lines are increased.
13