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Turbulent flow and zonal flow poloidal and toroidal modulus radial propagation probe system

A toroidal mode and probe technology is applied in the field of probe systems to achieve the effects of increasing amplitude, decreasing amplitude, and accurate and reliable plasma edge parameter distribution data.

Active Publication Date: 2012-01-25
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its lifetime is limited by high thermal loads, and the accuracy and precision of the measurements are not very good

Method used

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  • Turbulent flow and zonal flow poloidal and toroidal modulus radial propagation probe system
  • Turbulent flow and zonal flow poloidal and toroidal modulus radial propagation probe system
  • Turbulent flow and zonal flow poloidal and toroidal modulus radial propagation probe system

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Embodiment Construction

[0019] A turbulent flow and ribbon flow poloidal and circumferential modulus radial propagation probe system of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Such as figure 1 and 2 As shown, the system includes three sets of probe assemblies of ten-pin rake type, six-pin three-step type and twelve-pin comb type. The three probe components can be plugged and combined arbitrarily. Such as figure 1 and 2 As shown, there is a cylindrical first fixing connector 8 , a second fixing clip 11 , a cylinder 27 and a second fixing connector 19 with a smooth outer wall at the bottom of the three components. There is a movable plug connected with the cable lead in these fixed connectors, which is convenient for plugging and replacement, and combination. But for the observation of low-frequency and geodesic acoustic-mode ribbon flows corresponding to potential, electric field, and density perturbations, as well as three-d...

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Abstract

The invention discloses a turbulent flow and zonal flow poloidal and toroidal mode number radial propagation probe system, which comprises three sets of probe components of the ten-pin rake type, the six-pin three-step type and the twelve-pin comb type. Each probe component adopts a pyrolytic graphite probe, an outer cover of pyrolytic graphite material or a protective sleeve is arranged outside each pyrolytic graphite probe, and a movable plug is arranged at the bottom part of each component, so that each probe component can be plugged in and pulled out at any time. Each probe component is mutually independent and can be combined arbitrarily. The device can be used for obtaining potential, low-frequency and geodesic acoustic mode zonal flow of an electric field and density perturbation, quasi-associated mode, poloidal and toroidal mode number symmetry of high-frequency turbulent flow, radial propagation and a three-dimensional spatial structure thereof; and the probe components adoptthe pyrolytic graphite material and the full shielding type pyrolytic graphite protective sleeve structures, as the pyrolytic graphite material has high purity, small sputtering and long service life, the system causes small pollution to a plasma and lead edge parameter distribution data of the plasma to be accurate and reliable.

Description

technical field [0001] The invention relates to a probe system for observing electric field, potential and density disturbance, in particular to a radial propagation probe system for turbulent flow and ribbon flow in polar direction and circumferential direction. Background technique [0002] Plasma microturbulence can cause anomalous transport of particles and energy. According to the confinement performance of the Tomac plasma, the properties of the edge plasma play a crucial role in the confinement performance of the overall plasma, and the particle and energy transport processes in the edge region are mainly caused by electrostatic fluctuations. Therefore, understanding the nature and physical mechanism of edge electrostatic fluctuations is of great significance for improving the overall confinement performance of plasmas. Plasma macroscopic parameters such as low-frequency and geodesic acoustic mode ribbon flow of potential, electric field and density perturbation, qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/06G01R1/073
Inventor 洪文玉严龙文
Owner SOUTHWESTERN INST OF PHYSICS