X Ray

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X Ray

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Nonnuclear electromagnetic radiation of very short wavelength, lying within the interval of 0.1 to 100 angstroms (between gamma rays and ultraviolet radiation). Also called X-radiation, Roentgen ray . </dd>
X-rays penetrate various thickness of all solids and they act upon photographic plates in the same manner as light. Secondary X-rays are produced whenever X-rays are absorbed by a substance; in the case of absorption by a gas, this results in ionization. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use