Superhigh-temporal resolution laser Thomson scattering diagnosis system

• Main Authors: CHEN HUI, HU AILAN, ZANG QING
• Format: Patent
• Language: Chinese; English
• Published: 30.03.2016
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a superhigh-temporal resolution laser Thomson scattering diagnosis system. A laser produces multi-pulsed laser with a pulse repetition rate of 4KHz and wavelength of 1064nm. A laser beam goes through a laser beam optical path transmission assembly and is focused and introduced into an EAST Tokamak device, in the EAST Tokamak device, laser and plasma interact and produce Thomson scattering, the scattered signal is imaged on end surfaces of multiple optical fibers through a large-aperture large-field angle imaging system, the scattered signal is respectively transmitted into 30 spectrometers through optical fiber transmission and is subjected to photovoltaic conversion under the action of the 30 spectrometers and the electric signal is respectively fed into a GHz sampling frequency data acquisition and processing system. The large energy high frequency continuous output laser is used as a laser Thomson scattering active diagnosis light source so that necessary conditions are provided for