Many magnetic resonance imagers operate at a magnetic field strength of 1.5 Tesla. A few research units operate at 4.7 Tesla. What is the resonance frequency of the following nuclei in each of the magnetic fields?

1H
23Na
31P

ν = γBo
where:

ν = resonance frequency
γ = gymagnetic ratio for the nuclei in question
Bo = magnetic field strength

Resonant Frequencies
ν (MHz)
γ (MHz/T)
Bo = 1.5T
Bo = 4.7T
1H
42.58
63.87
200.13
23Na
11.27
16.91
52.97
31P
17.25
25.88
81.08