Core-density-collapse event in the Large Helical Device
Event details
| Date | 30.10.2015 |
| Hour | 10:30 › 11:30 |
| Speaker | Dr. Yasuhiro Suzuki, NIFS, Japan |
| Location |
PPB 019
|
| Category | Conferences - Seminars |
The Large Helical Device (LHD) is an L=2/M=10 heliotron configuration which is completely different idea to the tokamak. The magnetic field to confine the plasma is produced by only extenal 3D magnetic field. That is, the 3D magnetic field structure strongly reflects themagnetohydrodynamics (MHD) equilibrium and instability. In this talk, we show a topics about the magnetohydrodynamics (MHD) instability, which is expected to the collapse event in high central beta plasma. If the pressure profile becomes steep in the plasma core, major collapse, which is so-called the Core Density Collapse (CDC), appeared. A speculation driving the CDC is proposed from a nonlinear dissipative MHD simulation. We show results of the simulation and comparison to experimental observations.
Practical information
- Informed public
- Free
Organizer
- Prof. P. Ricci
Contact
- Prof. P. Ricci