红外与毫米波学报2019，Vol.38Issue(6)：690-694,5.DOI:10.11972/j.issn.1001-9014.2019.06.002
应用于动态核极化核磁共振系统的改进型传输线研究
Investigations on an improved transmission line for THz DNP-NMR spectroscopy
摘要
Abstract
The improved transmission and mirror system for a 263 GHz DNP-NMR spectrometer has been de-signed and numerically simulated based on the geometric optics theory and the vector diffraction theory. The sys-tem includes two corrugated waveguides,a parabolic mirror and an angle-adjustable phase-correcting mirror. The simulation results show that a well-focused Gaussian-like output wave-beam with 99. 90％ scalar Gaussian mode content,99. 55％ vector Gaussian mode content has been obtained. The direction of the output beam can be changed by only adjusting the angle of the phase-correcting mirror to match the DNP-NMR sample. The scalar Gaussian mode content is about 99. 57％,and the vector Gaussian mode content is about 98. 97％when the direc-tion of the output beam changes in ± 15o.关键词
传输线/相位矫正镜/核磁共振/动态核极化Key words
transmission line/phase-correcting mirror/nuclear magnetic resonance/dynamic nuclear polarization分类
信息技术与安全科学引用本文复制引用
曹毅超,钟任斌,沈皓,陈强,张晨,宋韬,黄杰,胡巧,刘頔威,王维,胡旻..应用于动态核极化核磁共振系统的改进型传输线研究[J].红外与毫米波学报,2019,38(6):690-694,5.基金项目
Supported by the National Key Research and Development Program of China(2017YFA0701000),the Fundamental Research Funds for the Central Universities( A03018023601003). （2017YFA0701000）
