Scanning probe system on high field side of Tokamak device

Abstract

The invention belongs to the technical field of Tokamak device, particularly relates to a scanning probe system on a high field side of a Tokamak device, which solves the measurement problem of plasma parameters at the edge on the high field side of the Tokamak device. A shaft is assembled on a fixed bracket through a bearing and a bearing sleeve; a coil, a coil framework and a probe fixed bracket connecting pipe are assembled on the shaft respectively; the coil and the plane surface of the coil framework are mutually perpendicular to the probe fixed bracket connecting pipe in the axial direction; a probe fixed bracket is arranged on the probe fixed bracket connecting pipe; a probe socket is arranged on the probe fixed bracket; probes are arranged on the probe socket and divided into two groups with one group arranged in a circular direction and another group arranged in an electrode direction; and lead wires connected with the probes are led out through the probe fixed bracket connecting pipe. In the scanning probe system provided by the invention, the probes are made of pyrolysis graphite material, and digital raster displacement is adopted for automatic measuring and controlling the movement displacement; and the temperature, the density, and the distribution of electric potential and the field of the electronics at the edge, which are vital parameters in the study of edge physics, can be simultaneously measured within one discharge of the controlled nuclear fusion study device.

Description

technical field [0001] The invention belongs to the technical field of tokamak devices, in particular to a strong field side scanning probe system of a tokamak device. The circular magnetic field on the strong field side of the tokamak device is (longitudinal field) and the pulse current with trigger current I passing through the coil perpendicular to the circular magnetic field, the force F generated by the rotation of the coil frame around the axis drives the probe assembly to scan the plasma edge area along the circular direction, and measures the strong field side Plasma parameters inside and outside the magnetic interface, flow velocity, particle flux, and poloidal and toroidal modulus symmetry and radial propagation of turbulence to study plasma transport and confinement properties. Background technique [0002] Plasma microturbulence can cause anomalous transport of particles and energy. The properties of the edge plasma play a crucial role in the confinement perfo...

AI Technical Summary

Problems solved by technology

[0003] At present, there are few measurements and studies on the plasma parameters of the strong-field side edge of the Tokamak device in the world. The Alcator C-Mod device has carried out research on the plasma parameters and parallel flow velocity of the strong-field side scrape-off layer (SOL).

Images