真空电子技术Issue(3)：5-9,5.DOI:10.16540/j.cnki.cn11-2485/tn.2024.03.02
应用于太赫兹波驱动的DNP-NMR传输线
Transmission Line for DNP-NMR Driven by Terahertz Wave
摘要
Abstract
The dynamic nuclear polarization enhanced nuclear magnetic resonance(DNP-NMR)spec-troscopy system driven by terahertz wave can greatly improve the signal sensitivity and shorten the detec-tion time.In the system,a transmission line is required to transmit terahertz wave between the driving source gyrotron and the spectrometer.A terahertz transmission line consisting of quasi-optical mode con-verter(QOMC)and corrugated waveguide for a 400MHz DNP-NMR system is designed and tested.The result shows that the QOMC can convert the 263GHz gyrotron TE03 mode into a quasi-Gaussian beam with a Gaussian component of 97％,and the final output beam of the entire transmission line has a Gaussi-an component of 96.3％.关键词
太赫兹/增强核磁共振/回旋管/传输线/准光模式变换Key words
Terahertz/DNP-NMR/Gyrotron/Transmission line/QOMC分类
电子信息工程引用本文复制引用
王维,张澳歌,宋韬,姚纳,焦蛟,张开春,刘頔威..应用于太赫兹波驱动的DNP-NMR传输线[J].真空电子技术,2024,(3):5-9,5.基金项目
国家自然科学基金(62371092,61988102,61921002,62101106),四川省自然科学基金(2024NSFSC0465),中央高校基本科研业务费专项资金资助(ZYGX2020ZB008和ZYGX2021J011),四川省博士后科学专项基金(TB2022039) （62371092,61988102,61921002,62101106）
