A radiograph is to be made with a 40 inch source-to-image distance (SID) using 12 miliampere-seconds (mAs). If the SID is increased to 72 inches, how could the mAs be changed to maintain the same receptor exposure??
Elongation of a radiographic image will most likely occur fr…
Elongation of a radiographic image will most likely occur from a/an:
Factors that impact the visibility of detail include all of…
Factors that impact the visibility of detail include all of the following EXCEPT
Contrast increases with all of the following EXCEPT
Contrast increases with all of the following EXCEPT
Which one of these factors determines the quality of the bea…
Which one of these factors determines the quality of the beam?
When the distance between the x-ray source and the point of…
When the distance between the x-ray source and the point of measurement increases, the beam energy will:
All filtration can be expressed in terms of the thickness of
All filtration can be expressed in terms of the thickness of
The source of x-ray emission within an x-ray tube is called…
The source of x-ray emission within an x-ray tube is called the:
Which combination of variables will result in a radiograph w…
Which combination of variables will result in a radiograph with the highest contrast?
If an initial exposure is made using 800 mA, 0.02 sec, 16 mA…
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