真空电子技术Issue(3)：41-47,7.DOI:10.16540/j.cnki.cn11-2485/tn.2024.03.09
频率可调谐太赫兹回旋管研究
Investigations on Frequency-tunable Terahertz Gyrotrons
摘要
Abstract
Frequency-tunable terahertz gyrotrons have a wide range of applications in terahertz en-hanced nuclear magnetic resonance(DNP NMR)and other fields.The self-developed frequency-tunable fundamental cyclotron harmonic terahertz gyrotrons,the second cyclotron harmonic terahertz gyrotrons,and multi-mode cyclotron harmonic terahertz gyrotrons are introduced in details.The highest operating frequency of the gyrotrons is 660 GHz,and the continuous-wave output power is at the level of 100 watts.Based on the self-developed frequency-tunable terahertz gyrotrons and high-power terahertz transmission lines,a terahertz enhanced NMR system is developed.The preliminary experimental results are obtained with the sensitivity enhancement of 350 for 1H and 88 for 13C.关键词
太赫兹/回旋管/频率可调/太赫兹增强核磁共振/灵敏度Key words
Terahertz/Gyrotron/Frequency-tunable/Terahertz enhanced NMR/Sensitivity分类
信息技术与安全科学引用本文复制引用
刘頔威,王维,张开春,宋韬..频率可调谐太赫兹回旋管研究[J].真空电子技术,2024,(3):41-47,7.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(ZYGX020ZB008和ZYGX021J011),四川省博士后科学专项基金(TB2022039) （62371092,61988102,61921002,62101106）
