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img crit mid 3
image critique midterm - QA QC detail and distortion
Question | Answer |
---|---|
Compared to quality control, a quality assurance program does what? | deals with people |
Radiographic kVp should be evaluated how often? | annually |
Focal spot size should be evaluated how often? | annually |
What might be used to evaluate focal spot size? | slit camera |
What QC test is used to evaluate total filtration of the primary beam? | half value layer |
What kind of FSS causes the least amount of focal spot blur? | low FSS |
What kind of SID causes the least amount of focal spot blur? | high SID |
What kind of OID causes the least amount of focal spot blur? | low OID |
The tolerance for FSS is: | +/- 50% |
The tolerance for exposure linearity is: | +/- 10% |
The tolerance for exposure reproducibility is: | +/- 5% |
The tolerance for the accuracy of kVp is: | +/- 4 kVp |
Protective apparel should be checked for defects how often? | annually |
The level of the tomographic section (fulcrum) and the actual level of the tomographic section should be within: | +/- 5mm |
For angles less than 30 degrees, how much can the angle readout be off? | +/- 5 degrees |