@techreport{oai:nifs-repository.repo.nii.ac.jp:00009694,
 author = {"Igami,  H. and Yoshimura,  Y. and Kubo,  S. and Shimozuma,  T. and Takahashi,  H. and Akiyama,  T. and Takahashi,  C. and Nagaoka,  K. and Minami,  T. and Matsuoka,  K. and Okamura,  S. and Tanaka,  H. and Nagasaki,  K. and Inagaki,  S. and Mutoh,  T. and Komori,  A. and the, LHD experimental group and the, CHS experimental group"},
 month = {Oct},
 note = {"In the large helical device (LHD), direct oblique launching of the extraordinary (X-) mode from the high magnetic field side is available without installation of any additional mirror or installation of a launcher in the inner side of the torus. The launched X-mode first encounters the electron cyclotron resonance (ECR) layer from the high magnetic field side and then approaches the upper hybrid resonance (UHR) layer where mode conversion from the X-mode to electron Bernstein wave (EBW) occurs. Complete power absorption with a finite parallel component of the refractive index is promising whether the launched wave power is absorbed as the electromagnetic X-mode or is absorbed as electrostatic EBW even in the peripheral region. In the experiment, strong power absorption has been observed by direct oblique launching of the X-mode. Observation of the parametric decay wave suggests a fraction of the launched power reached the UHR layer that is located near the plasma boundary. The result of numerical analysis with three dimensional ray-tracing calculation using the dispersion equation in hot plasmas suggests that the launched X-mode is refracted toward the magnetic axis and strongly absorbed very close to the ECR layer that is located around ρ~0.5. The main part of the launched power is absorbed as the X-mode in the ECR layer where the electron temperature is sufficient high, while a fraction of the power reaches the UHR that is located in almost the plasma boundary."},
 title = {Electron Bernstein wave heating via the slow X-B mode conversion process with direct launching from the high field side in LHD},
 year = {2008}
}