Spectroscopy and Spectral Analysis, Volume. 41, Issue 2, 333(2021)
Progress of Thomson Scattering Diagnostic on HL-2A Tokamak
Fig. 2. (a) is the pulsed light used for spectral calibration, its width is about 0.8 ms and repetition time is about 4.5 ms; (b) is relative spectral responsibility of a 5-channel polychromator for
Fig. 3. V1742B digitizers are set to sample at 2.5 GS·s-1, the time window of data acquisition is 410 ns
(a) is shown the raw data of a TS signal, its FWHM is about 25 ns, and Gaussian function is utilized to fit the pulse shape (red line); (b) is displayed the laser monitor
Fig. 4. The time interval of TS signals and laser monitor is shown for poly #7
CH# denotes the index of optical channels; the TS data of 5th channel is very weak and not used
Fig. 5. When the scattering signal is weak, the “intrinsic” function parameters
Fig. 6. Measurement results of electron temperature at core plasma for shot#34269, with NBI during 800~1 300 ms
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Jie SHANG, Yuan HUANG, Kai YANG, Bao-wei CHEN, Chun-hua LIU, Yi YANG. Progress of Thomson Scattering Diagnostic on HL-2A Tokamak[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 333
Category: Research Articles
Received: Jan. 22, 2020
Accepted: Apr. 17, 2020
Published Online: Apr. 8, 2021
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