Tomographic Analysis of Central MHD Activities and Radiation Losses on the HL-2A and LHD
Tomographic Analysis of Central MHD Activities and Radiation Losses on the HL-2A and LHD
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DOI：
10.1088/1009-0630/8/1/10
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发表时间：
2006
影响因子：
1.7
通讯作者：
L. Yi;B. Peterson;Dong Yun-bo;Pan Yudong;Deng Wei
中科院分区：
文献类型：
--
作者：
L. Yi;B. Peterson;Dong Yun-bo;Pan Yudong;Deng Wei
给出了HL-2A软x射线发射和大螺旋装置（LHD）电磁辐射的二维重构分布结果。船载软x射线相机的硬件改进和层析成像软件的发展使得HL-2A软x射线发射的详细和可视化研究成为可能。为了获得尽可能详细的图像，同时使引导假设最小化，采用了几种算法。最近，中日合作成功应用二维剥离算法对LHD热量数据进行层析重建。目前所分析的数据已用于研究HL-2A托卡马克磁流体动力学（MHD）的不稳定性和LHD的辐射损失。
Results of the two-dimensionally reconstructed distribution of soft X-ray emission in HL-2A and electromagnetic radiation in large helical device (LHD) are presented. Hardware improvements of in-vessel soft X-ray cameras and the development of tomographic software have made detailed and visual studies of soft X-ray emission possible in HL-2A. Several algorithms are employed in order to get as detail as possible in the images while keeping the guiding assumptions to a minimum. Recently success has been achieved in applying a 2D peeling away algorithm for tomographic reconstruction of LHD bolometric data jointly under the China-Japan collaboration. The data analysed so far have been used to study magnetohydrodynamic (MHD) instabilities on HL-2A tokamak and radiation losses on LHD.