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QA & QC

Bushong Quality Assurance & Quality Control

QuestionAnswer
Quality Control focus is on equipment
Quality Control 3 steps 1. Acceptance testing 2. Performance monitoring 3. maintenance/error correction
FILTRATION: inspected: __ mm Al(min) annually 2.5mm
COLLIMATION: Inspected: Tolerance not to exceed __ % of SID semi annually 2%
FOCAL SPOT SIZE: Inspected: tolerance __ % of mfg recommendations annually 50%
KVP CALIBRATION: Inspected: tolerance __ % of indicated kVp annually 10%
EXPOSURE LINEARITY Inspected: tolerance __ % annually 10%
EXPOSURE REPRODUCIBILITY Inspected: tolerance __ reproduction annually same (5%)
EXPOSURE TIMER ACCUARCY Inspected: tolerance __ % annually 5%
LEAD APRONS: Inspected: to identify: annually tears, cracks & holes
Luminance is check by a properly calibrated photometer
flatfielding preprocessing feature or manipulation used to apply equalize response program
3 classifications of digital artifacts 1. image receptor 2. software 3. object
histogram graphic display of the distribution of pixel values.
Artifacts: fixer milky appearance
Artifacts: washing greasy appearance
Artifacts: drying brittle appearance caused by improper dryer temp.
Created by: MoMcKenna
 

 



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