Chinese Optics Letters, Volume. 16, Issue 12, 121201(2018)
System validation of CO2-laser-based phase contrast imaging on HL-2A tokamak
Figures & Tables(10)
Fig. 1. PCI calibration using sound waves launched by a loudspeaker.
Fig. 2. Signals caught by two detection channels in four independent tests.
Fig. 3. Power spectra of detected signals in different channels with a 20 kHz sound wave modulation.
Fig. 4. Power spectra of detected signals with different sound wave modulations in Ch9.
Fig. 5. Raw signals from five detecting channels with a modulating sound wave frequency of 20 kHz.
Fig. 6. Time slices of signals from detecting channels after filtering and absolute magnitude calibration.
Fig. 8. Frequency-wavenumber spectrum of the signals from the 32 channel detector array after calibration.
Fig. 9. (a) Voltage amplitudes in detection array; (b) conversion relations of detection array.
Fig. 10. Raw data of PCI detector element during plasma discharge on HL-2A tokamak; shot number, 34299.
Tools
Get Citation
Copy Citation Text
Yi Yu, Shaobo Gong, Min Xu, Boda Yuan, Yifan Wu, Lin Nie, Rui Ke, Minyou Ye, Xuru Duan. System validation of CO2-laser-based phase contrast imaging on HL-2A tokamak[J]. Chinese Optics Letters, 2018, 16(12): 121201
Paper Information
Category: Instrumentation, measurement, and metrology
Received: Jun. 20, 2018
Accepted: Nov. 1, 2018
Published Online: Dec. 7, 2018
The Author Email: Min Xu (minxu@swip.ac.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20