Improvement in sensitivity of FT- ESR measurements by using a gyrotron as high-power millimeter wave source
Improvement in sensitivity of FT- ESR measurements by using a gyrotron as high-power millimeter wave source
复制标题
使用陀螺仪作为高功率毫米波源提高 FT-ESR 测量的灵敏度
DOI：
10.1109/irmmw-thz46771.2020.9370426
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Fujii Y.
中科院分区：
文献类型：
--
作者：
Mitsudo S.;Dono K.;Hayashi K.;Ishikawa Y.;Fujii Y.
利用回旋管的高功率毫米波，研制了脉冲ESR波谱系统。用正交检测法成功地观测到聚苯乙烯稀释的BDPA稳定自由基的FID信号。通过对这些FID信号进行傅立叶变换，成功地获得了BDPA的高分辨率FT-ESR谱。试图通过对所获得的光谱进行平均来提高灵敏度。结果发现，平均次数n与S/N比值之间存在√n倍关系。
Pulsed ESR spectroscopy system was developed using the high-power millimeter wave of gyrotron. The FID signal of stable radicals of BDPA diluted with polystyrene was successfully observed by the quadrature detection method. By Fourier transforming of these FID signals, high resolution FT-ESR spectrum of BDPA was successfully obtained. An attempt was made to improve the sensitivity by averaging the obtained spectra. It was found that there was an √n -fold relationship between the number of averagings n and the S/N ratio.
IEEE 等离子体科学汇刊
影响因子：
1.5
作者：
W. Lindblad
通讯作者：
W. Lindblad