An x-ray source is producing an entrance skin exposure of 3.1 mSv per hour at 10 cm from the source. What is the entrance skin exposure at 15 cm from the source?

kVp is the controlling factor for:

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

A technologist acquires an x-ray of the pelvis using 100 kilovoltage peak (kVp), 10 milliampere-seconds (mAs), 40 inches source-to-image distance (SID), and a no grid. The exposure level is good, but the contrast is too low. If the exam is repeated using a 16:1 grid, what new technique should be employed?

The distance at which a focused grid can be used is most closely related to the:

Source-to-image distance (SID) is the distance from the:

The normal diagnostic x-ray tube has a filtration equivalency of about 0.5 mm aluminum equivalent. This is called:

The normal diagnostic x-ray tube has a filtration equivalency of about 0.5 mm aluminum equivalent. This is called:

Kilovoltage peak (kVp) in the x-ray tube is the unit of measurement describing:

According to the inverse square law, if the source-to-image distance (SID) decreases, the receptor exposure will: