Quality Control

What error tolerance is allowed for Centering?

1%

What error tolerance is allowed for Distance

2%

What error tolerance is allowed for Collimation

2%

What error tolerance is allowed for Exposure Timer

5%

What error tolerance is allowed for Exposure Reproducibility

5%

What error tolerance is allowed for kVp Calibration

5%

What error tolerance is allowed for Exposure Linearity

10%

What quality control is the ability of an x-ray tube to produce the SAME radiation exposure, or intensity, with the SAME exposure settings

Exposure Reproducibility

What quality control is the ability of an x-ray tube to produce the same radiation exposure with the same mAs, but varying mA and time settings

Exposure Linearity

What is called when detectors are calibrated to produce the same response to the same exposure levels?

Detector Calibration

What is it called when CR readers should be calibrated to produce the same response to the same exposure levels 

Reader Calibration

What is it called when a small lead block is exposed, then the receptor is read, erased, exposed again, and read again. This checks for any residual image of the block

Erasure thoroughness

What is called when the image receptor is exposed, processed, and reviewed for an artifacts or changes in radiation response?

Plate Uniformity 

What is it called when the spatial resolution of image receptors is checked by exposing the line-pairs tool. Resolution is checked vertically, horizontally, in the center of the IR and on the periphery of the IR

Spatial Resolution 

Which QC test measures the uGy/mAs at adjacent mA stations? 

Exposure Linearity 

What QC test requires multiple exposures with identical techniques?

Exposure Reproducibiliity 

What QC test checks for voltage drift?

kVp Calibration

Coincidence testing is an evaluation of

Collimation

What QC test must be performed twice per year?

Collimation

What image receptor test checks for ghost image?

Erasure Thoroughness

What image receptor test uses a small lead block?

Erasure Thoroughness

What image receptor test uses a line-pairs tool?

Spatial Resolution

What QC process ensures detectors produce the same responses to the same exposure levels

Detector Callibration

The brightness of PACS reading monitor is checked with a

Luminance Meter

During the AEC test, increasing the patient thickness should not affect

Receptor Exposure

If the indicated SID is 100 cm, the actual SID cannot be more than

102 cm