A high quality radiograph should always demonstrate ____________.

Penumbra is ____ when the field size is  ____ .

A decubitus radiograph is acquired using 72 kilovoltage peak (kVp), a 12:1 grid, 72 inch source-to-image distance (SID), 600 milliamperes (mA), and using automated exposure control (AEC). Which of these variable modifications will decrease the exposure time?

Which one of these grid ratios will absorb the most scattered radiation?

Elongation occurs when:

The thickness of absorbing material necessary to reduce the x-ray intensity to half of the original value is called:

If an initial exposure is made using 800 mA, 0.02 sec, 16 mAs, 70 kVp, 58” SID, 4 “ OID, 5:1 grid ratio, 0.2 mm focal spot and 3.0 mm of filtration, with a 14 x 17 in field size, and the technologist changes the mAs to 5 for a second exposure without changing any other factors, what differences would you expect to see in the second exposure?1) Increased IR exposure2) Decreased IR exposure3) Increased contrast4) Decreased contrast5) Increased spatial resolution6) Decreased spatial resolution7) Increased distortion8) Decreased distortion

Grid ratio is represented by the formula:

When changing your SID from 72” to 56”

According to the inverse square law, when the distance between the x-ray source and the point of measurement (patient, worker, or receptor) increases, the beam quantity will: