X-radiation is defined as which type of radiation?

X-radiation is defined as which type of radiation?

• A. High energy ionizing electromagnetic radiation
• B. Non-ionizing visible light
• C. Low energy ultraviolet rays
• D. Heat generated by the x-ray tube

Answer: (A)

X-radiation is high-energy ionizing electromagnetic radiation. Its photons carry enough energy to knock electrons off atoms, which is what makes it ionizing. That places X-rays at the high-energy end of the electromagnetic spectrum, with wavelengths far shorter than visible light. It isn’t simply the heat produced by the X-ray tube, and it isn’t non-ionizing visible light or low-energy ultraviolet photons. The defining feature is that these photons are energetic enough to ionize matter.

X-radiation is high-energy ionizing electromagnetic radiation. Its photons carry enough energy to knock electrons off atoms, which is what makes it ionizing. That places X-rays at the high-energy end of the electromagnetic spectrum, with wavelengths far shorter than visible light. It isn’t simply the heat produced by the X-ray tube, and it isn’t non-ionizing visible light or low-energy ultraviolet photons. The defining feature is that these photons are energetic enough to ionize matter.