Low magnetic field dynamic nuclear polarization using a single-coil two-channel probe

TitleLow magnetic field dynamic nuclear polarization using a single-coil two-channel probe
Publication TypeJournal Article
Year of Publication1997
AuthorsTonThat D.M, Augustine M.P, Pines A, Clarke J
JournalReview of Scientific Instruments
Volume68
Issue3
Pagination1527-1531
Date PublishedMar
ISBN Number0034-6748
Accession NumberWOS:A1997WP24700033
Keywordsnmr
Abstract

We describe the design and construction of a single-coil, two-channel probe for the detection of low-field magnetic resonance using dynamic nuclear polarization (DNP). The high-frequency channel of the probe, which is used to saturate the electron spins, is tuned to the electron Larmor frequency, 75 MHz at 2.7 mT, and matched to 50 Omega. Low-field, H-1 nuclear magnetic resonance (NMR) is detected through the second, low-frequency channel at frequencies <1 MHz. The performance of the probe was tested by measuring the DNP of protons in a manganese (II) chloride solution at 2.7 mT. At the proton NMR frequency of 120 kHz, the signal amplitude was enhanced over the value without DNP by a factor of about 200. (C) 1997 American Institute of Physics.

URL<Go to ISI>://WOS:A1997WP24700033
DOI10.1063/1.1147641
Short TitleLow magnetic field dynamic nuclear polarization using a single-coil two-channel probe
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