Computer Graphics Questions
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Which of the following is (are) method(s) that would enable the radiographer to reduce the exposure time required for a particular radiograph?
the relationship between the amount of illuminator light striking the film and the amount of light transmitted through the film is an expression of radiographic density. It is expressed by the formula. (Bushong, p 279)
High-kilovoltage exposure factors are usually required for radiographic examinations using
Which of the following is (are) characteristic(s) of mammography film emulsion?
Unopened boxes of radiographic film should be stored away from radiation and
Which of the following examinations might require the use of 120 kVp? 1. AP abdomen
Which of the following conditions would require an increase in exposure factors?
Methods that help reduce the production of scattered radiation include using
The steeper the straight-line portion of a characteristic curve for a particular film, the
X-ray film emulsion is most sensitive to safelight fog
All of the following affect the exposure rate of the primary beam except
The number of x-ray photons delivered to the patient in a given exposure is primarily regulated by
Boxes of film stored in too warm an area may be subject to
The purpose of the automatic processor's circulation system is to
A film emulsion having wide latitude is likely to exhibit
The continued emission of light by a phosphor after the activating source has ceased is termed
The microswitch for controlling the amount of replenishment used in an automatic processor is located at the(A) receiving bin.(B) crossover roller.(C) entrance roller.(D) replenishment pump.
A radiograph made using 300 mA, 0.1 s, and 75 kVp exhibits motion unsharpness, but otherwise satisfactory technical quality. The radiograph will be repeated using a shorter exposure time. Using 86 kV and 500 mA, what should be the new exposure time?(A) 0.12 s(B) 0.06 s(C) 0.03 s(D) 0.01 s
Materials that emit light when stimulated by x-ray photons are called
Which of the following is most likely to produce a radiograph with a long scale of contrast?