quality control

Question 1

centering

Answer 1

center of xray beam must be aligned with indicator within 1% of SID

Question 2

distance

Answer 2

actual SID must be within 2% of SID

Question 3

collimation

Answer 3

light field must align with xray field collimation within 2% of SID

Question 4

exposure timer

Answer 4

actual exposure time must be within 5% of indicated time

Question 5

AEC testing

Answer 5

multiple exposures through different thicknesses should produce the same exposure amount

Question 6

kVp

Answer 6

actual kVp must be within 5% of assigned kVp

Question 7

exposure reproducibility

Answer 7

exposure values for identical technical parameters should be within 5%

Question 8

exposure linearity

Answer 8

exposure per mAs should not change more than 10% between mA stations