Method of magnetic resonance with excitation by a prewinding pulse
Abstract:
A method of magnetic resonance, in which a sample introduced in a measurement volume in an external magnetic field is excited by an excitation pulse and the signal formed by the transverse magnetization thus produced is read out by a receiving coil. The method is characterized in that a prewinding pulse is used as the excitation pulse, which prewinding pulse is characterized in that the formed transverse magnetization M⊥(ω) of spins of different Larmor frequency ω after the pulse has a phase φ0(ω), wherein φ0(ω) as a function of ω within a predefined frequency range Δω has an approximately linear course having negative slope, such that the spins refocus after an echo time defined by the pulse without an additional refocusing pulse being necessary.
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