Using high kVp technique results in which change to exposure time?

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Enhance your skills for the Radiologic Technology Supervisor and Operator Test. Study effectively with multiple choice questions, each supported by explanations and hints to ensure you're fully prepared!

Multiple Choice

Using high kVp technique results in which change to exposure time?

Explanation:
Raising kVp makes the beam more penetrating, so you don’t need as many photons to achieve the same image receptor exposure. Exposure to the image receptor is driven by mAs (mA × time), and higher kVp lets you lower the required mAs. Since that mAs can be achieved with a shorter exposure time (while keeping the tube current the same), the exposure time decreases. In short, higher kVp improves beam efficiency enough that you can shorten the exposure time to maintain the same satisfactory receptor exposure.

Raising kVp makes the beam more penetrating, so you don’t need as many photons to achieve the same image receptor exposure. Exposure to the image receptor is driven by mAs (mA × time), and higher kVp lets you lower the required mAs. Since that mAs can be achieved with a shorter exposure time (while keeping the tube current the same), the exposure time decreases. In short, higher kVp improves beam efficiency enough that you can shorten the exposure time to maintain the same satisfactory receptor exposure.

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