On visibility of carbon dust particles in fusion plasmas with fast framing cameras
On visibility of carbon dust particles in fusion plasmas with fast framing cameras
复制标题
利用快速分幅相机观察聚变等离子体中的碳尘颗粒
DOI：
10.1088/0741-3335/51/5/055017
复制
发表时间：
2009
影响因子：
2.2
通讯作者：
J. Terry
中科院分区：
文献类型：
--
作者：
R. Smirnov;S. Krasheninnikov;J. Yu;A. Pigarov;M. Rosenberg;J. Terry
利用计算机和理论模型，用快速分幅照相机对聚变等离子体中碳尘埃粒子的可见度进行了评估。考虑了尘埃粒子在等离子体中的加热和烧蚀、尘埃粒子周围烧蚀云的电离动力学、尘埃粒子的热辐射和烧蚀云的线辐射。用摄像机可见的碳尘埃颗粒的最小尺寸被计算为等离子体参数和从尘埃到摄像机物镜的距离的函数。分析了谷物的热辐射和云的线辐射对沙尘总辐射的相对贡献。
The visibility of carbon dust particles in fusion plasmas with fast framing cameras is evaluated using computer and theoretical modelling. Dust heating and ablation in the plasmas, ionization dynamics of the ablation cloud around the dust particle, thermal radiation of the dust and line radiation of the cloud are considered. The minimal size of carbon dust particles visible with the cameras is calculated as a function of the plasma parameters and the distance from the dust to the camera objective. The relative contributions of thermal radiation from the grain and line radiation from the cloud to the total dust radiation are analysed.