Which term describes the gradual spread of the ultrasound beam in the far field?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

Which term describes the gradual spread of the ultrasound beam in the far field?

Explanation:
Beam divergence describes how the ultrasound beam gradually spreads as it travels into the tissue, especially in the far field. This spreading happens because a finite transducer aperture causes diffraction, so the beam widens with depth and lateral resolution can decrease as you look deeper. Attenuation means energy loss with depth, focal depth is where the beam is most focused, and axial resolution is about distinguishing structures along the beam; none of these describe the gradual beam spreading the way divergence does.

Beam divergence describes how the ultrasound beam gradually spreads as it travels into the tissue, especially in the far field. This spreading happens because a finite transducer aperture causes diffraction, so the beam widens with depth and lateral resolution can decrease as you look deeper. Attenuation means energy loss with depth, focal depth is where the beam is most focused, and axial resolution is about distinguishing structures along the beam; none of these describe the gradual beam spreading the way divergence does.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy