PHYS1008 Study Guide - Final Guide: Transverse Plane, Stationary Point, Pythagorean Theorem
2 Aug 2018
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Document Summary
In real life, the motion of m precessing around b0 is a blur, before during or after an. The precession at many mhz makes m appear as a blur. B1 is also rotating as fast as the spins and would also appear as a blur. This diagram shows the application of a rotating/oscillating b1 field applied to the spin system. Viewed from the laboratory frame, both the b1 field and spins are all rotating quickly. The b1arrow on the plane is shown in one position only for clarity but it is rotating just as fast as the spins and should also be a blur. Simplifies the complex motion of precessing spins before, during or after rf pulse. The reason m appears blurred in real life is due to us viewing the system from a stationary point of view = laboratory frame of reference.
