新型小调场式微波频率EPR谱仪

新型小调场式微波频率EPR谱仪

王魁香¹，徐蔚青²，邓京川¹，赵红福¹, 陈继东¹，李应龙¹，胡冰¹

1. 吉林大学物理学院声学与微波物理系，长春 130023；2. 吉林大学超分子结构与材料教育部重点实验室，长春 130012

收稿日期:2003-11-25 修回日期:1900-01-01 出版日期:2004-07-26 发布日期:2004-07-26
通讯作者: 徐蔚青

A new small magnetic modulation microwave EPR spectrometer

WANG Kui-xiang¹, XU Wei-qing², DENG Jing-chuan¹ ， ZHAO Hong-fu¹,CHEN Ji-dong¹, LI Ying-long¹, HU Bing¹

1. Department of Acoustics and Microwave Physics, College of Physics, Jilin University, Changchun 130023, China;2. Key Laboratory for Supramolecular Structure and Material, Ministry of Education, Changchun 130012, China

Received:2003-11-25 Revised:1900-01-01 Online:2004-07-26 Published:2004-07-26
Contact: XU Wei-qing

摘要/Abstract

摘要： 采用小调场锁相技术及计算机控制、数据采集，边限振荡状态的Gunn管作为微波源和检波器及放入样品的三位一体腔，制备出微波频率EPR谱仪，其灵敏度达到3×10⁸ spins/T.

关键词: EPR谱仪, 小调场, 微波边振自检, 计算机控制

Abstract: A simplified and compact electron paramagnetic resonance (EPR) spectrometer is constructed by putting a self-detecting microwave marginal oscillator, as a wave source, a sample and a detector in one cavity-structure on the basis of small magnetic modulation, computer control and data superimp osing. The final sensitivity is 3×10⁸ spins/T.

Key words: EPR spectrometer, a small magnetic modulation field, se lf-detection of microwave marginal oscillation, computer control

中图分类号:

O562.2

王魁香，徐蔚青，邓京川，赵红福, 陈继东，李应龙，胡冰. 新型小调场式微波频率EPR谱仪[J]. J4, 2004, 42(03): 433-436.

WANG Kui-xiang, XU Wei-qing, DENG Jing-chuan ， ZHAO Hong-fu,CHEN Ji-dong, LI Ying-long, HU Bing. A new small magnetic modulation microwave EPR spectrometer[J]. J4, 2004, 42(03): 433-436.