X-ray machine testing with a cathode-ray oscillograph.
D055984:Cathode Ray Tube; D004566:Electrodes; D006801:Humans; D009991:Oscillometry; D011859:Radiography / Q000295:instrumentation*; D013679:Technology, Radiologic / Q000295:instrumentation*; D014965:X-Rays
ROENTGENOLOGY/apparatus and instruments