Application of Soft X-Ray Imaging System to the STE-2 RFP
Application of Soft X-Ray Imaging System to the STE-2 RFP
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DOI：
10.1585/pfr.2.s1063
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发表时间：
2007
影响因子：
0.8
通讯作者：
T. Onchi;A. Sanpei;R. Ikezoe;H. Himura;S. Masamune
中科院分区：
文献类型：
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作者：
T. Onchi;A. Sanpei;R. Ikezoe;H. Himura;S. Masamune
在STE-2 RFP（R/a = 0.4 m/0.1 m）中安装了一个软X射线（SXR）成像系统（由微通道板、荧光板和图像增强器CCD相机组成），以获得高分辨率的二维（2-D）SXR图像，看看是否可以从2-D SXR图像推断出3-D磁性结构。在标准RFP等离子体中获得的SXR图像进行了比较与RFP等离子体具有不同的MHD性能。我们已经确定了2-D SXR图像中的特征结构，这取决于本系统的MHD特性。还讨论了图像数据处理的优化，例如从数据中滤除噪声或亮度分布的色调校正。
A soft X-ray (SXR) imaging system (consisting of a microchannel plate, a phosphor plate and an image intensifier CCD camera) has been installed in the STE-2 RFP (R/a = 0.4 m/0.1 m) to obtain high-resolution two-dimensional (2-D) SXR images to see if 3-D magnetic structures can be deduced from the 2-D SXR image. The SXR images obtained in standard RFP plasmas have been compared with those in RFP plasmas with different MHD properties. We have identified characteristic structures in the 2-D SXR images depending upon the MHD properties with the present system. Optimization of the image data processing such as noise filtering from the data or tone correction of brightness distribution is also discussed.