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    Nuclear Magnetic Resonance

    Thank you all very much, especially Gokul for the excellent explanation. Also, thanks for link, Claude, very helpful. I have one more question regarding MRI: How is position information obtained in an MRI scan, i.e. how can we know extract from the NMR-information where the different types of...
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    Nuclear Magnetic Resonance

    Hi, I'm taking a course on medical imaging (mainly MRI), and I'm having trouble understanding NMR. Can anyone explain what this is all about in plain language? Here is what I make of it: Odd-numbered nuclei possesses a total spin of magnitude 1/2 and an associated magnetic moment (why is...
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    Rotational energy levels

    Thank you.
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    Rotational energy levels

    Are rotational energy levels of a molecule in general equally spaced or does the spacing increase with energy? How about a diatomic molecule; I have seen a derivation showing that the rotational levels in a diatomic molecule are equally spaced, but when drawn in an energy level diagram they...
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