Calibration of kVp meters used in quality control tests in diagnostic radiology by spectrometry.
A non-invasive calibration methodology of quality control instruments for diagnostic radiology was established and applied to different kinds of commercial kVp meters. The method uses the measurement of the spectrum endpoint as a reference. The results showed a variation of 10% between the responses of the instruments calibrated and the spectrometric system, a fact that demonstrates the need for instrument calibration.
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Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear/SP, São Paulo, Brazil.
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D002138:Calibration; D006801:Humans; D011786:Quality Control; D011834:Radiation Monitoring / Q000295:instrumentation*; D011859:Radiography / Q000295:instrumentation*; D013053:Spectrophotometry / Q000379:methods*