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10 Cards in this Set
- Front
- Back
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Name 2 ways to create a short pulse to improve axial resolution.
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less ringing
higher frequency |
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Is axial resolution adjustable by the sonographer?
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No
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T/F
The dampening material of the probe increases the bandwidth. |
True
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What is the common name for the Fraunhofer zone?
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far field or far zone
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Is lateral resolution adjustable by the sonographer?
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Yes, by changing the depth
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Long duration events are _________ bandwidth, whereas short duration events are _________ bandwidth.
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narrow
wide |
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A _________ pulse has a lower Q-factor; a __________ pulse has a higher Q-factor.
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short
long |
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Which probe component prevents vibrations in the case from inducing an electrical voltage in the PZT?
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acoustic insulator
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In a linear phased probe, if the crystal is damaged, how will the U/S image be disturbed?
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bad steering and focusing
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Transducer frequency depends on: the __________ of the crystal, and the __________ of sound in the crystal.
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thickness
speed |
