Answered: For a breast examination, the… | bartleby

Related questions

Question

ultrasound physics

For a breast examination, the sonographer replaces a 5 MHz transducer with a 10 MHz transducer. Which transducer frequency produces the stronger echo from a reflector at a depth of 5 cm? Assume that the transmitted intensity is the same for each frequency.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

For a 5 MHz ultrasound beam, what is the total attenuation of the echoes received at the transducer from a target 5 cm deep, if the target reflects 50% of the ultrasound energy? Assume an attenuation rate of 1 dB/(cmMHz) a. 48 dB b. 53 dB c. 100 dB d. 200 dB
Microwave ovens typically cook food using microwaves with frequency 2.45 GHz. What is the corresponding wavelengh of these microwaves in cm?(ans: 12.2cm) An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. If the time delay of the echo is 6 seconds, what is the depth of the water? (ans: 4590 m) Show work
It is not completely understood what it is about APC ferrules that cause them to have less back reflection than UPC ferrules.
An interface is formed between a block of aluminium (with an acoustic impedance of 1.8 x 107 kg m2 s') and a block of copper (with an acoustic impedance of 4.6 x 107 kg m-2 s-1). Longitudinal sound waves travelling through the aluminium are normally incident on the boundary, and are partially reflected. a) What is the ratio of the amplitude of the reflected wave to that of the incident wave? Number b) What is the ratio of the amplitude of the transmitted wave to that of the incident wave? Number c) What percentage of the incident power is transmitted? Number d) What percentage of the incident power is reflected? Number % Ouit P Sove Questi
A stereo speaker is placed between two observers who are 167 m apart, along the lineconnecting them.If one observer records an intensity level of 58.2 dB, and the other records an intensitylevel of 61.2 dB, how far is the speaker fromthe closer observer?Answer in units of m
A 75-kW radio station broadcasts its signal uniformly in all directions, What is the average intensity of its signal at a distance of 250 m from the antenna?
Given the task of maximizing the transmission of sound waves from water into steel, (a) what is the optimum characteristic impedance of the material to be placed between the water and the steel? (b) What must be the density of, and sound speed in, a layer of 1 cm thickness that will produce 100% transmission at 20 kHz?
b) Given that the attenuation constant for TEM waves propagating on an air-filled cable is: α R 4πZ a b wp 20 +2) where R and Z₁ = 60 In In (1) Where a and b are the inner and outer radii of the cable respectively. Show that for minimum losses the ratio of the inner and outer radii is b/a = 3.6. Evaluate the corresponding characteristic impedance. HINT: Partially differentiate with respect to a holding b constant