Broadband SQUID NMR with Room-Temperature Samples

✍ Scribed by S. Kumar; B.D. Thorson; W.F. Avrin

• Book ID: 102973128
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 564 KB
• Volume: 107
• Category: Article
• ISSN: 1064-1866
• DOI: 10.1006/jmrb.1995.1085

✦ Synopsis

Superconducting quantum interference (d) evices (SQUIDs) are the most sensitive detectors of magnetic fields. We have used an untuned broadband SQUID detector to detect transverse nuclear magnetic-resonance signals from samples of mineral oil, salt water, and animal tissue at room temperature. Proton NMR signals have been detected from about 20 to (450 \mathrm{kHz}). We have also detected fluorine, sodium, and possibly phosphorus NMR signals. SQUID NMR shows promise in NMR imaging, since the SQUID's sensitivity and broad bandwidth make it ideal for low-field imaging. SQUID NMR may also be useful for lowfield spectroscopy in biology, chemistry, and materials science. O 1995 Academic Press, Inc.