@article{oai:nifs-repository.repo.nii.ac.jp:00010853,
 author = {Roidl, Benedikt and TODO,  Yasushi and TAKASE,  Yuichi and Tsujii, Naoto and EJIRI,  Akira and Yoshida, Yusuke and Yajima, Satoru and Shinya, Takahiro},
 issue = {September 2018},
 journal = {Computer Physics Communications},
 month = {Sep},
 note = {In this study a hybrid simulation environment to investigate the lower-hybrid-wave-driven tokamak plasmas is presented, and its application to the spherical tokamak TST-2 is described. These plasma are formed and driven by radio-frequency waves without the use of the central solenoid, and are characterized by low density and low magnetic field. A hybrid simulation environment which is divided into two groups, one using magneto-hydrodynamic (MHD) as well as particle-in-cell (PIC) approaches, and the second group using ray-tracing and Fokker–Planck solvers, is applied to describe the behavior of energetic electrons, bulk plasma, wave propagation, and the wave-particle interaction. Both groups of solvers can be coupled via the energetic-particle velocity distribution function and the equilibrium conditions of magnetic field, pressure, and density profiles to obtain a self-consistent solution. First results show the impact of a self-consistent equilibrium on ray trajectories and current density profiles. Therefore, new insights in lower-hybrid-wave-driven plasmas of TST-2 can be obtained using the proposed hybrid simulation environment.},
 pages = {38--49},
 title = {A simulation environment to simulate lower-hybrid-wave-driven plasmas efficiently},
 volume = {230},
 year = {2018}
}