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

What type of shape distortion is present when there is angulation of an image receptor?

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:

Which of the following represents the correct relationship of the central ray to the anatomical part being imaged?

If the OID is 8 inches and the SID is 72 inches, what is the magnification factor?

When an air-gap technique is used, the amount of scatter reaching the image receptor is decreased because:

The problem of unequal subject radiographic density is solved by a

During the exposure, the grid in the bucky:

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 OID to 8” 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

Which of the following factors affect beam quantity?