a) In terms of the timing and gradient parameters shown in Fig. 9.6, show that the phase during the first (negative) gradient lobe is $(z, t) Gz(t - t1) - yAB(2)(t 27) t1 I (Robert_W_Brown;_Yu-Chung_N_Cheng: E_Mark_Haacke;(z-lib.org).pdf - Adobe Reader File Edit View Window Help pen (192 of 978) Tools Fill & Sign Comment 158 100% Sign In Export PDF Create PDF v Edit PDF Adobe Acrobat Pro 158 Chapter 9. One-Dimensional Fourier Imaging Easily edit text and images in PDF documents Start Now (T)y (T/2) Send Files > Store Files rf t, G read t, ADC T. Fig. 9.6: Sequence diagram for a spin echo 1D imaging experiment with a 7-pulse preceding two gradient lobes of opposite polarity. The subscripts on the rf flip angles again denote the direction of the applied magnetic field B1.