The automatic exposure control (AEC) terminates the exposure when ________________.

  The ratio of x-rays incident on the input phosphor to light photons exiting the output phosphor is called __ gain.

  An image intensifier tube is identified by the diameter of its __.

What type of radiation is composed of photons not produced at the actual focal spot?

Full-wave rectified, three-phase units provide an x-ray beam at _____ pulse(es) per second.

The half value layer (HVL) of an x-ray beam is a measurement of beam _______.

Europium is the ______________ of the photostimulable phosphor.

Bremsstrahlung x-rays are produced by ______________ at the target.

                 An  x-ray beam that could pass through dense tissue would have high _____.

A charged particle in motion creates a(n) ______________.