{"title":"Development of toroidal soft X-ray imaging system and application for investigating three-dimensional plasma on J-TEXT","authors":"Chuanxu Zhao, Jianchao Li, Xiaoqing Zhang, Nengchao Wang, Yonghua Ding, Zhoujun Yang, Zhonghe Jiang, W. Yan, Yangbo Li, Feiyue Mao, Zhengkang Ren","doi":"10.1088/2058-6272/ad1364","DOIUrl":null,"url":null,"abstract":"\n 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.","PeriodicalId":20250,"journal":{"name":"Plasma Science & Technology","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Science & Technology","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.1088/2058-6272/ad1364","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
引用次数: 0
Abstract
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.
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.