Increasing the kVp has what effect on the average energy of photons in the x-ray beam?
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Select all changes that occur when the original radiograph i…
Select all changes that occur when the original radiograph is of good quality and the kVp is increased.
What radiographic quality does mA control?
What radiographic quality does mA control?
If an x-ray beam was produced from a single point source, th…
If an x-ray beam was produced from a single point source, the resultant image would consist of:
If the x-ray tube is moved closer to the image receptor, the…
If the x-ray tube is moved closer to the image receptor, the collimator light will
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 to a 12:1 grid ratio 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
The recorded detail of a radiographic image can be affected…
The recorded detail of a radiographic image can be affected by which of the following:1) SID2) Focal Spot Size3) OID4) mAs5) kVp6) Patient Motion7) Detector DEL size
A technique of 10 mAs at 78 kVp is used at a 140 cm (56”) SI…
A technique of 10 mAs at 78 kVp is used at a 140 cm (56”) SID. What new SID should be used to decrease the exposure to 5 mAs at 78 kVp?
Short-dimension grids, where the grid lines run with the sh…
Short-dimension grids, where the grid lines run with the short axis of the grid instead of the normal long axis, are useful for which of the following?
A radiograph of the shoulder is produced using 12 milliamper…
A radiograph of the shoulder is produced using 12 milliampere-seconds (mAs) and 75 kilovoltage peak (kVp) at the wall bucky. How could the technique be changed to decrease contrast while maintaining the same receptor exposure?