X-ray
X-radiation (composed of X-rays) is a form of electromagnetic radiation.
X-rays have
a wavelength in the range of 0.
01 to 10 nanometers, corresponding to frequencies in the range
30 petahertz to 30exahertz (3×1016
Hz to 3×1019
Hz) and energies in...
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X-ray
X-radiation (composed of X-rays) is a form of electromagnetic radiation.
X-rays have
a wavelength in the range of 0.
01 to 10 nanometers, corresponding to frequencies in the range
30 petahertz to 30exahertz (3×1016
Hz to 3×1019
Hz) and energies in the range 100 eV to 100 keV.
The wavelengths are shorter than those of UV rays and longer than of gamma rays.
In many
languages, X-radiation is called Röntgen radiation, after Wilhelm Röntgen, who is usually credited
as its discoverer, and who had named it X-radiation to signify an unknown type of radiation.
Correct
spelling of X-ray(s) in the English language includes the variants x-ray(s) and X ray(s).
X-rays with photon energies above 5-10 keV (below 0.
2-0.
1 nm wavelength) are called hard X-rays,
while those with lower energy are called soft X-rays.
Due to their penetrating ability hard X-rays are widely used to image the inside of objects, e.
g.
in medical radiography and airport security.
As a result, the term X-ray is me
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