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?

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

The y-axis for all emission spectra represents the:

Contrast increases with all of the following EXCEPT

If an initial exposure is made using 400 mA, 1/10 sec, 40 mAs, 80 kVp, 50” SID, 12” OID, 8:1 grid ratio, 0.6 mm focal spot and 2.5 mm of filtration, with an 8 x 10 inch field size, and the technologist changes the SID to 60 inches 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

If the x-ray tube is moved closer to the image receptor, the radiation intensity at the IR:

During an x-ray procedure, a technologist receives a dose of 5 micro-Sieverts at a distance of 10 feet from the x-ray source. At a distance of 15 feet, the technologists dose would have been:

A high quality radiograph should always demonstrate ____________.

A type of grid in which the grid lines are situated parallel to the divergent rays of the x-ray beam is termed a:

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 filtration to 2.5 mm Al 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