When an air-gap technique is used, the amount of scatter reaching the image receptor is decreased because:
If the original radiograph has good receptor exposure and th…
If the original radiograph has good receptor exposure and the mAs is increased and the kVp is decreased according to the 15% rule, which of these statements is true?1) Receptor exposure increases2) Contrast increases3) Receptor exposure decreases4) Contrast decreases5) Receptor exposure stays the same6) Contrast stays the same
If an optimal radiograph is acquired at 72 inches with an ai…
If an optimal radiograph is acquired at 72 inches with an air kerma of 4 mGy, what will the air kerma be if the distance is reduced to 40 inches?
According to the inverse square law, when the distance betwe…
According to the inverse square law, when the distance between the x-ray source and the point of measurement (patient, worker, or receptor) increases, the beam quantity will:
If the same exposure factors are used on four different radi…
If the same exposure factors are used on four different radiographs and all that is changed is the SID, which radiograph would have the greatest IR exposure? The one taken at a:
Shape distortion always results in a loss of image quality a…
Shape distortion always results in a loss of image quality and should therefore be avoided.
Which of the following projections of the skull would result…
Which of the following projections of the skull would result in elongation of the anatomy being imaged?
Technical factors that are considered “geometric” include …
Technical factors that are considered “geometric” include 1. focal spot selection 2. SID 3. grid ratio 4. filtration thickness 5. OID 6. tube angulation 7. part thickness 8. receptor resolution
A radiograph acquired at 60 kilovoltage peak (kVp) results i…
A radiograph acquired at 60 kilovoltage peak (kVp) results in an underexposed image. What new kVp setting will double the receptor exposure?
Scattered radiation that hits the image receptor produces:
Scattered radiation that hits the image receptor produces: