Which of the following crystals will produce sound with the lowest frequency?
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Which of the following formulas determines the impedance of…
Which of the following formulas determines the impedance of a medium?
A pulsed wave transducer has a resonant frequency of 5 Mhz. …
A pulsed wave transducer has a resonant frequency of 5 Mhz. The lowest frequency in the pulse is 2 Mhz and the highest is 8 Mhz. What is the bandwidth?
The maximum imaging depth during an ultrasound exam is 10 cm…
The maximum imaging depth during an ultrasound exam is 10 cm. The sonographer adjusts the imaging depth to 20 cm. What happens to PRF?
The thickness of the active element is ____ of the wavelengt…
The thickness of the active element is ____ of the wavelength of sound in the active element.
Cleaning a transducer should be performed:
Cleaning a transducer should be performed:
_________________ is the dominant factor contributing to att…
_________________ is the dominant factor contributing to attenuation of ultrasound in soft tissue.
The matching layer
The matching layer
Attenuation of the sound beam is proportional to the:
Attenuation of the sound beam is proportional to the:
How is pulse length related to pulse duration?
How is pulse length related to pulse duration?