The energy difference between two nuclear spin states in an external magnetic field B is given by(adsbygoogle = window.adsbygoogle || []).push({});

[itex]\Delta E = \gamma \hbar B[/itex]

Why does resonant absorption of electromagnetic radiation by nuclear spins take place at the Larmor frequency? Shouldn't it be that the photon energy is equal to the energy difference between the two nuclear spin states? Or in this case, does the radiation freuquency just happen to be equal to the Larmor frequency? What is the value of invoking the Larmor frequency into the explanation of NMR? Wouldn't it just be simpler to say the photon energy must be equal to the energy difference between spin states?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Question on nuclear magnetic resonance and Larmor frequency

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

Loading...

Similar Threads for Question nuclear magnetic |
---|

I Two particles Dirac type equation question |

I Dirac equation, one question |

I Braket notation question |

B Quick question about Bloch's sphere |

I A question about a particle's de Broglie wavelength |

**Physics Forums | Science Articles, Homework Help, Discussion**