Chapter 9 Test


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1. Beam forming is performed in array transducers through the use of:
2. The focal zone is the region where the ultrasound energy is:
3. The process of changing the size of the transmit and receive component of a transducer lens is called:
4. The process that decreases the relative excitement of certain element to insure beam uniformity is referred to as:
5. Side lobes are a product of:
6. How much time does it take a sound wave to make it round trip in a depth of 1 cm:
7. By increasing overall gain, the system:
8. To prepare a signal for imaging on a monitor the system must first:
9. The technical component of the ultrasound system to adjust echoes a various depths is called:
10. The ability to display a large number of shades of gray in an image is called: