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- X-rays are electromagnetic waves at the short wavelength end of the electromagnetic spectrum. They are produced in an X-ray tube when fast-moving electrons hit a target. Their wavelengths are about the same size as the diameter of an atom.

-To make a radiograph or X-ray photograph, X-rays from an X-ray tube are directed at the patient. A lightproof cassette containing a photographic fil or a flat-panel detector is placed on the other side of the patient

-X-rays are dangerous because they are highly ionising and can destroy…


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