@danejoe650 Yes. The shown relaxation only includes T1. What T2 would look like in the video would be nuclei start to point at various directions in the xy-plane. So the net magnetic moment along the y-axis would decrease gradually when more and more nuclei are out of phase with each other.
This also tells us why T1 is always longer T2. When T1 is over, there are no more horizontally aligned nuclei thus no net magnetic moment in the xy-plane.
nice animation but a little physically misleading. The spins seem to have behavior like quantized spin and net magnetization due to an ensemble of spins. Also the emission of electromagnetic waves does not just occur when an individual spin changes state but rather whenever there is oscillatory motion of the spin magnetic moment.
nice .the hydrogen dudes should think long and hard about this.its all related
cmorethings 3 months ago
so nuclei emit radio waves as they return to the ground state.
and electrons emit and absorb photons to move UP or DOWN energy levels.
where do the phonons come into the picture?
islandbuoy4 4 months ago in playlist More videos from thomoost
Very helpful visualizations.
Is this T1 relaxation?
danejoe650 5 months ago
@danejoe650 Yes. The shown relaxation only includes T1. What T2 would look like in the video would be nuclei start to point at various directions in the xy-plane. So the net magnetic moment along the y-axis would decrease gradually when more and more nuclei are out of phase with each other.
This also tells us why T1 is always longer T2. When T1 is over, there are no more horizontally aligned nuclei thus no net magnetic moment in the xy-plane.
h2321 4 months ago
Great video guys...
juanpodadera1 5 months ago
Thanks for the video..it is probably the best video on youtube about MRI.
shahir321 6 months ago
So amazingly good!!!. Thank you. Favourite and shared. Cheers!!!, Sergio.
profesorsergio 6 months ago
excellent video:) thanx
lookatcha 1 year ago
make more such videos!!!
by the way you have any other material that details the image formation through fourier analysis?
leotakesleo 1 year ago
nice animation but a little physically misleading. The spins seem to have behavior like quantized spin and net magnetization due to an ensemble of spins. Also the emission of electromagnetic waves does not just occur when an individual spin changes state but rather whenever there is oscillatory motion of the spin magnetic moment.
cytorun 1 year ago 2
Great video!
caio1985 1 year ago
Beautiful excellent well done
1250fani 2 years ago