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NMR Simulation: Hahn's Spin Echoes

Video has no sound. The video gives a brief example tutorial on a basic concept in NMR physics. Spin echoes were discovered and explained by Erwin Hahn in 1950. The explanation used the Bloch equation, but applies it to an ensemble, where each member of the ensemble has its own resonant frequency, with the distribution of resonant frequencies being Gaussian about the central frequency. Hahn's spin echoes were found with a series of "pi/2" pulses. More information about the simulations and software is available at https://faculty.washington.edu/dbpeng...