波谱学杂志 ›› 1987, Vol. 4 ›› Issue (3): 259-264.

• 研究论文 • 上一篇    下一篇

TE011腔使用扁平样品管提高水溶液样品ESR波谱灵敏度的研究

陈炳焕, 蔡同茂, 万谦   

  1. 中国科学院生物物理研究所
  • 收稿日期:1986-12-01 修回日期:1987-02-05 出版日期:1987-09-05 发布日期:2018-01-22

THE STUDIES OF INCREASING THE SENSITIVITY OF ESR SPECTRUM OF AQUEOUS SAMPLE IN TE011 MODE CAVITY WITH FLAT CELLS

Chen Binghuan, Cai Tongmao, Wan Qian   

  1. Institute of Biophysics, Academia Sinica
  • Received:1986-12-01 Revised:1987-02-05 Online:1987-09-05 Published:2018-01-22

摘要: 实验表明,在TE011模式园柱形腔中,不但可以使用扁平样品管测量水溶液样品的ESR波谱,而且获得好的腔品质因子Q和高品质的ESR信号。所观察到的信号高度,是使用最佳尺寸毛细管样品时最大信号高度的3.2倍;又是在具有波导尺寸的TE102腔中使用扁平样品管时所获得信号高度的3倍。本文对此作了定性的理论分析。

关键词: 电子自旋共振(ESR), 电子自旋共振波谱仪灵敏度, TE011模式园柱形谐振腔, 扁平样品管

Abstract: The experimental results show that flat sample cell not only can be used to measure ESR spectrum of aqueous sample in a TE011 mode cylindrical cavity,but also gives a good cavity quality factor Q and high quality ESR signals. The observed signal height was 3.2 times as large as the maximum signal height that can be obtained when a capillary tube with optimum size was used in the same cavity, and 3 times as large as the signal height when a flat cell was used in a TE102 mode rectangular cavity with waveguide size. In this paper,a theoretical analysis is given.

Key words: electron spin resonance(ESR), sensitivity of ESR spectrometer, TE011 mode cylindrical cavity, flat sample cell