Smaller diameter PZT crystals create _______ focus beams whereas larger diameter crystals create ______ focus beams.

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 $9.99Unlock all

Prepare for the Davies Publishing SPI Test with our study materials featuring flashcards and multiple-choice questions. Each question includes hints and explanations to enhance your learning process. Ace your exam with confidence!

Multiple Choice

Smaller diameter PZT crystals create _______ focus beams whereas larger diameter crystals create ______ focus beams.

Explanation:
The aperture size of the crystal acts like a lens for the ultrasound beam: a larger aperture converges the wavefront more strongly, producing a tighter beam that reaches its narrowest point deeper in the tissue. A smaller aperture converges less, so the focus occurs nearer to the transducer. So, smaller diameter crystals create a shallower focus, while larger diameter crystals create a deeper focus.

The aperture size of the crystal acts like a lens for the ultrasound beam: a larger aperture converges the wavefront more strongly, producing a tighter beam that reaches its narrowest point deeper in the tissue. A smaller aperture converges less, so the focus occurs nearer to the transducer. So, smaller diameter crystals create a shallower focus, while larger diameter crystals create a deeper focus.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy