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iaea human health series publications - SEDIM

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Chart 7(a) — WEEKLY QC TEST OBJECT: DATA RECORDINGFacility:Manufacturer:Room/Unit:Model:Phantom Serial #:Uniform phantom baselineExposure mode (AEC/AOP)Target–FilterkVCompression thickness (mm)Compression force (N)mAs baselineAverage mAs+10% limit–10% limitMPV (signal) baselineMPV in disc (A)Upper action limit = MPV × 1.1Lower action limit = MPV × 0.9SDNR BaselineSDNR = (B – A)/C whereA = MPV in discB = MPV in backgroundC= standard deviation in backgroundAverage SDNR valueUpper action limit = Average SDNR × 1.1Lower action limit = Average SDNR × 0.9YearMonthDayInitialABCSDNRArtefactsAcceptableSoft copyHard copyDate:Remarks:160

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