Which combination of f and D will give the best image of this structure? January 26, 2021 Read More »
Derive an expression for the depth resolution in the far field as a function of z0. January 26, 2021 Read More »
What will happen to the B-mode image if the speed of sound in the medium is nonuniform but we still use a uniform speed assumption? January 26, 2021 Read More »
What is the lateral resolution (FWHM) of this transducer at a range z = 10 cm? January 26, 2021 Read More »
What is the maximum frame rate acheivable, for a 256 × 256 B-mode image? Assume a speed of sound c = 1, 480 m/s. January 26, 2021 Read More »
Find the ratio, , between the transmit amplitudes of the two systems such that at z = zswitch, assuming a perfect reflection. January 26, 2021 Read More »
Find the maximum value of d such that the tumor could still be detected by receiving the 5-MHz signal. January 26, 2021 Read More »
Write down an equation that gives an expression for the transverse magnetization under these circumstances. January 26, 2021 Read More »
Derive a more general formula for MZ (t). You can assume that the transverse magnetization has completely dephased before each RF pulse, that is, Mxy(TR) = 0. January 26, 2021 Read More »