dorsal/arxiv
View SchemaDetection of NMR signals with a radio-frequency atomic magnetometer
| Authors | I. M. Savukov, S. J. Seltzer, M. V. Romalis |
|---|---|
| Categories | |
| ArXiv ID | physics/0611058 |
| URL | https://arxiv.org/abs/physics/0611058 |
| DOI | 10.1016/j.jmr.2006.12.012 |
Abstract
We demonstrate detection of proton NMR signals with a radio frequency atomic magnetometer tuned to the NMR frequency of 62 kHz. High-frequency operation of the atomic magnetometer makes it relatively insensitive to ambient magnetic field noise. We obtain magnetic field sensitivity of 7 fT/Hz$^{1/2}$ using only a thin aluminum shield. We also derive an expression for the fundamental sensitivity limit of a surface inductive pick-up coil as a function of frequency and find that an atomic rf magnetometer is intrinsically more sensitive than a coil of comparable size for frequencies below about 50 MHz.
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"abstract": "We demonstrate detection of proton NMR signals with a radio frequency atomic\nmagnetometer tuned to the NMR frequency of 62 kHz. High-frequency operation of\nthe atomic magnetometer makes it relatively insensitive to ambient magnetic\nfield noise. We obtain magnetic field sensitivity of 7 fT/Hz$^{1/2}$ using only\na thin aluminum shield. We also derive an expression for the fundamental\nsensitivity limit of a surface inductive pick-up coil as a function of\nfrequency and find that an atomic rf magnetometer is intrinsically more\nsensitive than a coil of comparable size for frequencies below about 50 MHz.",
"arxiv_id": "physics/0611058",
"authors": [
"I. M. Savukov",
"S. J. Seltzer",
"M. V. Romalis"
],
"categories": [
"physics.atom-ph",
"physics.chem-ph"
],
"doi": "10.1016/j.jmr.2006.12.012",
"title": "Detection of NMR signals with a radio-frequency atomic magnetometer",
"url": "https://arxiv.org/abs/physics/0611058"
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