Последовательность жестких импульсов ЯМР в низком поле(Спиновое эхо)
The low field NMR hard pulse sequence (Спиновое эхо) is excited by hard pulse radio frequency.
Pulse sequence diagram
Последовательность жестких импульсов ЯМР в низком поле(Спиновое эхо) parameters:
РФ: triggering timing sequence of RF pulses;
Rx: receiving timing sequence of nuclear magnetic signal;
P90: 90 degree pulse width;
P180: 180 degree pulse width;
Tr: Waiting time for repeated sampling, namely the time between the end of the previous sampling and the beginning of the next sampling;
τ : half-echo time;
D3: The time interval between the end of the radio frequency at 180 degrees and the beginning of the signal acquisition.