Open AccessFrequency dependence of pulsed EPR experiments
Author(s) -
Eaton Sandra S.,
Eaton Gareth R.
Publication year - 2009
Publication title -
concepts in magnetic resonance part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.229
H-Index - 49
eISSN - 1552-5023
pISSN - 1546-6086
DOI - 10.1002/cmr.a.20148
Subject(s) - electron paramagnetic resonance , pulsed epr , spins , nuclear magnetic resonance , spin (aerodynamics) , physics , atomic physics , computational physics , materials science , condensed matter physics , spin echo , magnetic resonance imaging , medicine , radiology , thermodynamics
The frequency dependence of the signal‐to‐noise ratio (S/N) that is theoretically possible for pulsed electron paramagnetic resonance (EPR) experiments is the same as for continuous wave experiments. To select the optimum resonance frequency or frequencies for pulsed EPR experiments it is important to consider not only S/N, but also orientation selection, depth of spin echo modulation, and intensities of forbidden transitions. Evaluation of factors involved in selecting the optimum frequency for pulsed EPR measurements of distances between spins is discussed. © 2009 Wiley Periodicals, Inc. Concepts Magn Reson Part A 34A: 315–321, 2009.