A film transmits 25% of the incident light.  What is the optical density?

The primary controlling factor of contrast is:

Pertaining to the following illustration, which letter corresponds to the useful densities within the diagnostic range? C Curve(3).jpg

The heavy black densities produced on a radiographic image after processing correspond to what region of the characteristic curve?

Which of the following films will demonstrate the lowest contrast? Films A & B(3).jpg

Which of the following is the best definition of kilovoltage?

The tilted angle on the anode creates which of the following?

A ____ is a device designed to expose the film to a reproducible, uniform light through a series of progressively darker filters or optical step wedges.

An x-ray exposure of 200 mR is recorded at a distance of 40 inches.  If the same technical factors are used, what will the exposure be if the distance is increased to 72 inches?

A satisfactory radiograph is performed using 75 kVp and 18 mAs. If the kVp is decreased by 15% but the mAs remains constant, what changes will the image demonstrate? Decreased density Increased density Decreased contrast Increased contrast