Consider a MR imaging session. Assume the static field strength is Bo= 1.5 Tesla, the z-gradient is Gz = 2 Gauss/mm, and

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Consider A Mr Imaging Session Assume The Static Field Strength Is Bo 1 5 Tesla The Z Gradient Is Gz 2 Gauss Mm And 1 (104.45 KiB) Viewed 272 times

answer only part (c)
Consider a MR imaging session. Assume the static field strength is Bo= 1.5 Tesla, the z-gradient is Gz = 2 Gauss/mm, and the gyromagnetic ratio is y= 42,58 MHz/T. We would like to image a slice with center position z =10 cm, thickness Az =1 mm. (a) Find the frequency range of the RF waveform required to excite this slice and sketch the desired spectrum of the RF waveform. (b) Write down the mathematical expression for the "ideal" waveform that will yield the desired spectrum. (c) determine the amplitude A of this RF waveform required to induce a flip angle of 1/2.