![]() ![]() The higher the kVp, the lower the contrast. It also controls the contrast or grayscale of the ray image produced. Kilovolt Peak or kVp is the technical factor known to control the quality of the x-ray beam produced by the machine. Milliampere-seconds are a measure of radiation produced (milliamperage) given over a set period of time (seconds) from the x-ray machine. The machine vendors help in establishing what a proper S number should look like on your machine. The value is automatically recorded by the x-ray machine software for every exposure taken. It represents key-value monitoring that a quality radiograph is obtained with the least amount of dose to the patient.
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