Development of a CW-NMR Probe for Precise Measurement of Absolute Magnetic Field
Development of a CW-NMR Probe for Precise Measurement of Absolute Magnetic Field
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开发用于精确测量绝对磁场的 CW-NMR 探头
DOI：
10.1109/tasc.2019.2895360
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发表时间：
2019
影响因子：
1.8
通讯作者：
Winter Peter
中科院分区：
文献类型：
--
作者：
Yamaguchi Hiroshi;Sasaki Ken-ichi;Tanaka Toya;Abe Mitsushi;Flay David;Kawall David;Mibe Tsutomu;Seo Shun;Shimomura Koichiro;Ueno Yasuhiro;Winter Peter
利用微波和J-PARC E34（J-PARC μ on g-2/EDM）实验分别测量μ介子的超精细结构和μ介子的反常磁矩。这两个实验都要求均匀磁场优于1 ppm。为此，我们研制了一种标准探头，用于现场测量探头的校准，其分辨率为1.92± 0.18ppb。此外，还对标准探头的核磁共振频率的偏移进行了评估，偏移的总不确定度为±17.7 ppb。
Muonium spectroscopy experiment using microwave and J-PARC E34 (J-PARC muon g-2/EDM) experiments aim to measure the hyperfine structure of muonium and anomalous magnetic moment of muon, respectively. Both experiments require homogeneous magnetic fields better than 1 ppm. Therefore, we developed a standard probe to calibrate field measurement probes, with a resolution of 1.92±0.18 ppb. Moreover, a shift of the nuclear magnetic resonance frequency of the standard probe was also evaluated, and a total uncertainty of the shift is ±17.7 ppb.