开发环形软 X 射线成像系统并将其应用于研究 J-TEXT 上的三维等离子体

IF 1.6 3区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

Plasma Science & Technology Pub Date : 2023-12-07 DOI:10.1088/2058-6272/ad1364

Chuanxu Zhao, Jianchao Li, Xiaoqing Zhang, Nengchao Wang, Yonghua Ding, Zhoujun Yang, Zhonghe Jiang, W. Yan, Yangbo Li, Feiyue Mao, Zhengkang Ren

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引用次数: 0

摘要

研制了一种环形软x射线成像(T-SXRI)系统，用于研究J-TEXT上的三维等离子体物理。该T-SXRI系统由三组SXR阵列组成。其中两组是新开发的，分别位于真空室壁面环面位置φ为126.4°和272.6°，另一组是先前在φ = 65.5°处建立的。每组SXR阵列由3个阵列组成，可以多向观察等离子体，因此可以单独使用，通过层析方法获得SXR成像。用T-SXRI测量了锯齿前驱振荡。在三个环面位置成功地重建了相应的SXR扰动图像，从而形成了锯齿前驱体的三维测量。观察到的三维结构符合m/n = 1/1模态的螺旋结构。实验观测证实，T-SXRI系统能够观测等离子体的三维结构。

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Development of toroidal soft X-ray imaging system and application for investigating three-dimensional plasma on J-TEXT

A toroidal soft X-ray imaging (T-SXRI) system has been developed to investigate the three-dimensional (3D) plasma physics on J-TEXT. This T-SXRI system consists of three sets of SXR arrays. Two sets are newly developed and located on the vacuum chamber wall at toroidal position ϕ of 126.4° and 272.6°, respectively, while one set is established previously at ϕ = 65.5°. Each set of SXR arrays consists of 3 arrays viewing the plasma poloidally, and hence can be used separately to obtain the SXR imaging via the tomographic method. The sawtooth precursor oscillations are measured by T-SXRI. The corresponding images of SXR perturbations are successfully reconstructed at three toroidal positions, hence forms a 3D measurement of the sawtooth precursor. The observed 3D structure is consistent with the helical structure of the m/n = 1/1 mode. The experimental observation confirms that the T-SXRI system is capable of observing the 3D structure of the plasma.

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来源期刊

Plasma Science & Technology 物理-物理：流体与等离子体

CiteScore

3.10

自引率

11.80%

发文量

3773

审稿时长

3.8 months

期刊介绍： PST assists in advancing plasma science and technology by reporting important, novel, helpful and thought-provoking progress in this strongly multidisciplinary and interdisciplinary field, in a timely manner. A Publication of the Institute of Plasma Physics, Chinese Academy of Sciences and the Chinese Society of Theoretical and Applied Mechanics.