1H NMR noise measurements in hyperpolarized liquid samples

Patrick Giraudeau, Norbert Müller, Alexej Jerschow, Lucio Frydman

Research output: Contribution to journalArticlepeer-review


Noise measurements of nuclear spin systems using a tuned circuit can reveal the signatures of two different phenomena: Thermal circuit noise absorbed by the spin system, and nuclear spin-noise leading to tiny fluctuating magnetization components. Polarization enhancement can increase the observed noise amplitudes due to an enlarged coupling with the reception circuit. In this work we explore the detection of noise in 1H NMR of liquid water samples whose spin alignment is enhanced via ex situ dynamic nuclear polarization. A number of ancillary phenomena related to this kind of experiments are also documented.

Original languageEnglish (US)
Pages (from-to)107-112
Number of pages6
JournalChemical Physics Letters
Issue number1-3
StatePublished - Apr 1 2010

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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