Quality Control-RTBC Questions and Answers

Quality Control-RTBC Questions and
Answers
Plate Uniformity ✔️Correct Ans-The image receptor is exposed, processed and reviewed for any
artifacts or changes in radiation response



Spatial Resolution ✔️Correct Ans-The image receptor is tested using a line pairs tool, More
lines= more resolution



Monitor Calibration ✔️Correct Ans-Must be calibrated to the DICOM grayscale standard display
function (GSDF)



Centering ✔️Correct Ans-Actual center of the x-ray beam must align to the centering indicator
w/in 1% of the SID



Distance (SID) ✔️Correct Ans-Actual SID must be w/in +/- 2% of the indicator SID




Collimation ✔️Correct Ans-The light field must align with the x-ray field collimation w/in +/- 2%
of the SID



Exposure Timer ✔️Correct Ans-the actual exposure time must be w/in +/- 5% of the indicated
exposure time