排序方式: 共有3条查询结果,搜索用时 0 毫秒
1
1.
冯喜 刘阿娣 周楚 邹晓岚 庄革 王守信 王明远 刘海庆 丁卫星 张寿彪 吴木泉 朱翔 郝保龙 张津 刘朝阳 季佳旭 仲小明 刘深 谢锦林 林晓东 黄建军 高翔 万元熙 《等离子体科学和技术》2023,(11):63-73
To interpret the common symmetric peaks caused by the large-scale structure in the complex S(f) spectrum from the heterodyne Doppler reflectometry(DR) measurement in EAST, a 2D circular-shaped O-mode full-wave model based on the finite-difference time-domain method is built. The scattering characteristics and the influences on the DR signal from various scales are investigated. When the structure is located around the cutoff layer, a moving radial or poloidal large-scale structure kθ■... 相似文献
2.
The Doppler reflectometer(DR), a powerful diagnostic for the plasma perpendicular velocity(u⊥) and turbulence measurement, has been widely used in various fusion devices. Many efforts have been put into extracting the Doppler shift from the DR signal. There are several commonly used methods for Doppler shift extraction, such as the phase derivative, the center of gravity, and symmetric fitting(SFIT). However, the strong zero-order reflection component around 0 k Hz may interfere with the calcula... 相似文献
3.
汪平 胡广海 王亮 颜宁 仲小明 徐国盛 冯喜 叶扬 丁根凡 余林 刘阿娣 段艳敏 李二众 徐立清 刘海庆 丁锐 张斌 李妙辉 丁伯江 秦成明 张新军 王晓洁 吕波 张凌 吴茗甫 臧庆 林新 邹晓岚 宋云涛 《等离子体科学和技术》2023,(4):60-69
The blob properties in I-mode and ELM-free H-mode plasmas compared to L-mode have been investigated on the EAST tokamak, including the blob detection rate Nb,size δb,lifetime τb and radial velocity vr,b.The blob properties in L-mode and I-mode are similar, and those in ELM-free H-mode are different to them. The blob Nbis smaller while τbis larger in H-mode. The experimental blob sizeδband velocity scalings vr,b-δb show a good agre... 相似文献
1