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Y3- RD Radiographic kVp Accuracy For any combination of loading factors, the X-ray tube voltage must not deviate from the selected value, by more than 10%, the loading time must not deviate from the selected value by more than (10% + 1 ms), the X-ray tube current, must not deviate from the selected by more than 20%, and the current-time product must not deviate from the selected value by more than (10% + 0.2 mAs). Y3 RD1 Radiographi c kVp Accuracy Procedure The test should be performed over the range of kVp settings normally used on the particular equipment. For radiographic and fluoroscopic systems this will usually be 60 to 120 kVp. Ensure kVp meter is accurate over the range of kVp’s and beam filtrations used. Place meter probe on table top at 100 cm. Collimate to size of meter For DR systems move detector out of the beam On console choose Table Top exposure Select kVp; make exposure X-ray tube 100 cm detector