In: Physics
Radiation force balance power meters are commonly used
to measure output acoustic power of ultrasound transducers.
Two types of targets are usually used in these devices:
a flat perfect absorber, or a cone-shape perfect reflector.
What would be the angle theta for a cone perfect reflector in order
to
get identical power readings for a given ultrasound exposure
with two different type of targets? Assume that the two targets
have
equal surface areas.
You must provide a proof for your answer