Ultrasound Physics: What is the Beam Uniformity Coefficient?

[Fresh4Christ]

Pertaining to ultrasound physics, what is a "Beam Uniformity Coefficient"? How is it calculated? And why is it important? etc...

I need to write couple page paper on it and I can't seem to find any information about it anywhere...Thanks.

 

[berkeman]

Thread locked. Infraction point issued for multiple post.