In a pulse-echo system, the quality factor should be made as large as possible: 

You are asked to fabricate a pulsed u/s xdcr with the lowest possible frequency. Which piezoelectric crystal would you select?

The lateral resolution of a system:                            

Transducers should NOT be heat sterilized because:

Heat sterilization will damage the piezoelectric properties of the xdcr element if the high temperature used is equal to:

A CW sinusoidal wave is characterized by multiple frequencies.

Ultrasound xdcr convert _________ energy into ______ energy and vice versa.

Which statement below BEST describes the consequence of damping material?

The process of making the impedance values on either side of a boundary as close as possible to reduce reflections is called:

The impedance of a xdcr’s matching layer is 2.6 MRayls and the impedance of the piezoelectric crystal is 3.4 MRayls. If this is assumed to be a good imaging system, what is the best estimate for the impedance of the skin?