真空电子技术Issue(3)：33-36,4.DOI:10.16540/j.cnki.cn11-2485/tn.2024.03.07
基于263 GHz回旋管的动态核极化核磁共振研究
Research on Dynamic Nuclear Polarization NMR Based on 263 GHz Terahertz Cyclotrons
摘要
Abstract
Nuclear magnetic resonance(NMR)is a selective and non-invasive method for chemical structure analysis.The dynamic nuclear polarization-nuclear magnetic resonance(DNP-NMR)technology driven by terahertz waves can greatly improve the sensitivity of NMR spectrum signals and reduce the de-tection time by orders of magnitude,which shows broad application prospects in many fields such as mate-rials,chemistry,and biology.A DNP-NMR system based on self-developed terahertz gyrotron driving source and terahertz transmission line is introduced.The experimental testing process and results show that under the driving of a 263GHz radiation source,the NMR signal is enhanced by 353 times,and the ex-perimental results obtained are close to the international leading level.The relevant experimental research in this field is still in initial stage in China.The research has certain guiding significance for the domestic experiment of DNP-NMR driven by terahertz wave and the localization of system equipment.关键词
动态核极化/核磁共振/信号强度Key words
Dynamic nuclear polarization/Nuclear magnetic resonance/Signal strength分类
电子信息工程引用本文复制引用
张朝阳,刘頔威,王维,王爱钦,张澳歌,宋韬,郝伊宁,姚纳,焦蛟,张开春..基于263 GHz回旋管的动态核极化核磁共振研究[J].真空电子技术,2024,(3):33-36,4.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）
