Patent ID: 6850063

Claim:
A transient pseudo steady state (TRAPS) nuclear magnetic resonance (NMR) spectroscopy or tomography method, wherein a sequence of radio frequency (RF) pulses is applied onto a spin ensemble in a multi-echo experiment, and wherein the magnetization generated after an initial excitation pulse is transferred to substantially the static pseudo steady state with respect to some flip angle α1, the method comprising: transferring magnetization through gradual increasing change of the refocusing flip angle αn(α1<αn<180 degrees) in subsequent refocusing intervals following the initial pulse sequence to arrive at substantially the static pseudo steady state of the respectively used refocusing pulses with refocusing flip angles αn(α1<αn<180 degrees) such that the echo amplitude of the nth echo generated in this fashion is substantially a maximum possible value corresponding to the respective refocusing pulse with refocusing flip angle an in the static pseudo state magnetization with respect to refocusing flip angle αn.