SequenceSpinEcho

SequenceSpinEcho[din, H, te] performs a spin echo experiment with echo time te of the spin system din given the hamiltonian H with a 90 and 180 Degree pulse. SequenceSpinEcho[din, H, te, b1] performs a spin echo experiment with echo time te of the spin system din given the hamiltonian H with a 90 and 180 Degree pulse and b1. The te is defined in ms and the b1 of 100% is defined as 1. The output is a new spinsystem dout.