新型X波段多功能EPR谱仪的设计与性能

本文设计和研制了一款新型X波段多功能电子顺磁共振（electron paramagnetic resonance，EPR）谱仪，并为其开发一款新的控制和读出系统（control and readout system，CRS）来操控微波脉冲的产生和信号的采集，提高了系统的集成度和可扩展性. 该谱仪可实现常规的连续波EPR（continuous-wave EPR，cw-EPR）、脉冲EPR（pulsed EPR）和瞬态EPR（transient EPR，trEPR）实验，并装配了6~300 K的无液氦变温装置，以及兼具平行模式与垂直模式的新型双模连续波谐振腔和用于脉冲EPR及trEPR的介质腔. 针对新型EPR谱仪和新谐振腔，本文利用双模连续波、脉冲和瞬态三个不同方式的EPR实验，对其功能进行了验证.

Design and Performance of a New Multifunction X-band EPR Spectrometer

A new multifunction X-band electron paramagnetic resonance(EPR)spectrometer is designed and produced,which is equipped with a new operation system based on the EPR control and readout system(CRS).The new continuous-wave(cw)dual-mode resonator and the dielectric resonators for respectively the pulsed EPR and transient EPR(trEPR)are designed purposely.The adoption of CRS system improves significantly the integration and expandability.The spectrometer is equipped with cryogen-free EPR variable temperature system with a range of 6~300 K.Thereafter,three typical samples are used to demonstrate the elegant design of the spectrometer by the cw dual-mode EPR,pulsed EPR and trEPR experiments.Perspectively,this design herein will be a criterion or option of the new generation of EPR spectrometer.