Computed Tomography Technologist Practice Exam 2025 - Free CT Technologist Practice Questions and Study Guide

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Question: 1 / 615

How many electronvolts is equal to 1 keV?

10 eV

100 eV

1000 eV

One kiloelectronvolt (keV) is a unit of energy commonly used in the fields of physics and medical imaging, particularly in radiology and computed tomography (CT). The term "kilo" denotes a factor of 1000. Therefore, when converting kiloelectronvolts to electronvolts, you multiply the number of kiloelectronvolts by 1000.

Since 1 keV means 1,000 electronvolts, the correct answer reflects this conversion accurately by indicating that 1 keV is equivalent to 1000 eV. Understanding this conversion is essential in applications like CT imaging, where energy measurements are often represented in electronvolts to describe the energy of X-rays or other particles involved in imaging processes. This knowledge allows professionals to better interpret and utilize imaging equipment, ensuring accurate diagnoses and treatment planning.

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10000 eV

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