Non-linearity and frequency shifts of nuclear magnetic spin-noise

Martin Nausner, Judith Schlagnitweit, Vilko Smrečki, Xu Yang, Alexej Jerschow, Norbert Müller

Research output: Contribution to journalArticle

Abstract

We have systematically investigated the line shapes observed in proton nuclear spin-noise spectra which depend in a complex way on the properties of the resonance circuit, the number of spins present, transverse relaxation, inhomogeneous broadening, and radiation damping. Using highly sensitive high resolution probes these dependencies are investigated by way of high resolution 1H noise power NMR spectra of liquid samples. Significant deviations from intuitive expectations are observed. Simulations based on an adapted Nyquist noise equation are used to understand and interpret the experimental findings.

Original languageEnglish (US)
Pages (from-to)73-79
Number of pages7
JournalJournal of Magnetic Resonance
Volume198
Issue number1
DOIs
StatePublished - May 2009

Keywords

  • Nyquist noise
  • Radiation damping
  • Sensitivity
  • Spin-noise
  • Tuning

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Non-linearity and frequency shifts of nuclear magnetic spin-noise'. Together they form a unique fingerprint.

  • Cite this