So I think this could be asked in my oral exam. Why are the T1 relaxation times in NMR spectroscopy shorter than those of other nuclei and how is this correlated to the gyromagnetic ratio? inversely proportional? What does this mean for polarisation transfer? And how is the spectrum (resolution) influenced by T1? How can the signal be enhanced by choosing the repetition rate? I only know that the line width is proportional to 1/T2.

It would be really great if somebody could answer me this question. Thank you in advance!