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Impurity emissivity tomographic reconstruction by CCD imaging system on J-TEXT
ID：30 View Protection：ATTENDEE Updated Time：2023-11-20 13:45:34 Hits：1060 Oral Presentation

Start Time：2023-12-10 11:00（Asia/Shanghai）

Duration：15min

Session：S10 Electric Machine Design and control » S10Electric Machine Design and control

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Abstract
A tomographic reconstruction scheme of the tangential CCD imaging system was developed on J-TEXT, and the 2-D emissivity profile of CIII was obtained. Tomographic reconstruction was performed on the hypothesis that the emissivity is toroidally symmetric. Calibration of the CCD imaging system was completed by direct linear transfer(DLT), and the line-of-sight equations corresponding to each detector of the imaging system were obtained. The 2-D poloidal emissivity profile of CIII in the divertor configuration is obtained through Tikhonov regularization. The results of tomographic reconstruction show the evolution process of CIII emissivity in the divertor experiment and fit well with the magnetic flux surface calculated by equilibrium fitting code(EFIT).
Keywords
CCD camera,Tikhonov regularization,tomographic reconstruction,J-TEXT
Speaker
Jiaming Wang
Huazhong University of Science and Technology

Submission Author
Jiaming Wang Huazhong University of Science and Technology
Zhipeng Chen Huazhong University of Science and Technology
Zhifeng Cheng Huazhong University of Science and Technology
Xin Xu Huazhong University of Science and Technology
Xiaoqing Zhang Huazhong University of Science and Technology
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Important Date

  • Conference Date

    Dec 08

    2023

    to

    Dec 10

    2023

  • Nov 01 2023

    Draft paper submission deadline

  • Dec 10 2023

    Registration deadline

Sponsored By
IEEE IAS
Organized By
Southwest Jiaotong University (SWJTU)
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