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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gudoshnikov, S.A. Kozlov, A.N. Maslennikov, Yu.V. Serebrjakov, A.Y. Snigirev, O.V. |
| Copyright Year | 1965 |
| Abstract | An alternative magnetic field induced by the standard cell of an optically pumped /sup 3/He magnetometer has been directly measured by the SQUID-based second-order gradiometer with a signal-to-noise ratio higher than six. A measured field of 5*10/sup -13/ T at a 5-cm distance from the cell axis and a transverse relaxation time of 7 min have been found. The measured transverse decay time was equal to 7 min; thus, the resolution in the frequency domain is limited at a level on the order of 10/sup -3/ Hz, which corresponds to an uncertainty of approximately 5*10/sup -11/ T. The results imply that the direct measurement of the induced field in the optically pumped /sup 3/He magnetometers makes it possible to introduce a suitable metrological scale in the region of the weak magnetic field 5*10/sup -8 /T |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2449 |
| Ending Page | 2451 |
| Page Count | 3 |
| File Size | 280201 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 27 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic field measurement Optical pumping Time measurement Helium Frequency measurement Measurement standards SQUID magnetometers Signal to noise ratio Signal resolution Frequency domain analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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