The region of the ultrasound beam from the focus to beam diversion is called which of the following?
A. Fraunhofer zone
B. Fresnel zone
C. focal zone
D. divergence zone
Answer:A
The region of the ultrasound beam from the focus to beam diversion is called which of the following?
A. Fraunhofer zone B. Fresnel zone C. focal zone D. divergence zone