Kilovoltage peak (kVp or kV) is the voltage applied between the cathode and anode of an x-ray machine. The kVp determines the maximum x-ray energy that will be produced and the spectrum of x-ray energies produced. [1]kVp is commonly thought of as "speed of a car" or how fast the electrons will reach the target materiel (rotating anode).


  1. Conference of Radiation Control Program Directors, Inc. "COMPUTED RADIOGRAPHY (CR) AND DIGITAL RADIOGRAPHY (DR) STATE X-RAY INSPECTION PROTOCOL--Publication No. E-10-2 " Jan 2010.


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