A5042809913- Magnetic confinement fusion research
- Fusion materials and technologies
- Ionosphere and magnetosphere dynamics
- Superconducting Materials and Applications
- Silicon and Solar Cell Technologies
- Calibration and Measurement Techniques
- Plasma Diagnostics and Applications
- Laser-Plasma Interactions and Diagnostics
- Non-Destructive Testing Techniques
- Geophysics and Sensor Technology
- Particle accelerators and beam dynamics
- Advanced Semiconductor Detectors and Materials
- Radiative Heat Transfer Studies
- Magnetic Properties and Applications
Tianjin University
2023
National Institute for Fusion Science
2019
The Graduate University for Advanced Studies, SOKENDAI
2014-2019
Abstract The transport properties and line emissions of carbon impurity in the stochastic layer Large Helical Device have been investigated with 3D edge code EMC3-EIRENE. A parameter study has performed to examine sensitivity simulation results on each term model source characteristics, i.e. amount location. modelling revealed that order reproduce experimental emission distribution, perpendicular coefficient ( D imp ) first wall play important roles, while changes ion thermal friction forces...
The parallel flow of carbon impurity in a thick stochastic magnetic field layer called the 'ergodic layer' located at edge plasma Large Helical Device (LHD) is studied by space-resolved vacuum ultraviolet (VUV) spectroscopy, using 3 m normal incidence spectrometer. A full vertical profile C3+ evaluated from Doppler shift second order CIV line emission (2 × 1548.20 Å) horizontally-elongated position LHD. top and bottom edges ergodic has same direction toward outboard side along major radius...
The effects of resonant magnetic perturbation (RMP) field on impurity radiation, divertor footprint distribution, and core plasma transport are investigated in the detachment discharges Large Helical Device (LHD). RMP with m/n = 1/1 mode creates an edge island stochastic layer, which enhances emission from low charge states, C2+ C3+, then triggers a transition. Emission higher C4+ C5+, implies enhanced penetration impurities during phase RMP. toroidal particle flux distribution exhibits n 1...
The iron impurity density in the central column of Large Helical Device (LHD) plasmas with a hollow electron profile is found to be much smaller than those peaked based on radial measurement ions several ionization stages. transport has been studied help 1D simulation code. structure convective velocity suggests that an barrier formed by strong gradient effect convection near edge region LHD profile.
In this paper, we propose a highly consistent and sensitive method for steel plate stress measurement based on strong remnant magnetization magnetoelastic effect. Firstly, the J-A force-magnetic coupling model is theoretically improved, influencing factors of strength are investigated via parameter sweeping, it determined that can reduce initial permeability to improve sensitivity consistency measurement. Then equation coil electromagnetic impedance change in magnetic circuit vs deduced,...