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A sample of 1H in the equilibrium condition in a static magnetic field B0 is excited...

A sample of 1H in the equilibrium condition in a static magnetic field B0 is excited by a short circularly polarized RF pulse. The RF pulse is a magnetic field in the transverse plane

where ν0 is the Larmor frequency of the sample. The envelope of the RF pulse is a triangle function with parameter T:

(a) Find the tip angle of the magnetization vector as a function of t for 0 ≤ t ≤ 2T.

(b) What is the value of T to make B1(t) a π/2 pulse?

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Solutions For Problems in Chapter 12
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