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From low to high frequency these are: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. The electromagnetic waves in each of these bands have different characteristics, such as how they are produced, how they interact with matter, and their practical applications.
Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.
Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength, the electromagnetic spectrum includes: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. [3] [4]
The X band is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum.In some cases, such as in communication engineering, the frequency range of the X band is rather indefinitely set at approximately 7.0–11.2 GHz.
X-rays are electromagnetic waves with a wavelength less than about 10 −9 m (greater than 3 × 10 17 Hz and 1240 eV). A smaller wavelength corresponds to a higher energy according to the equation E = h c / λ .
Electromagnetic – gamma rays: 10 21: 1 zettahertz (ZHz) 36 ZHz: Resonance width of the rho meson: 10 24: 1 yottahertz (YHz) 10 27: 1 ronnahertz (RHz) 3.9 RHz: Highest energy (16 TeV) gamma ray detected, from Markarian 501: 10 30: 1 quettahertz (QHz) 10 43: 10 trillion QHz: 18.5 trillion QHz: The unit of inverse time (or frequency) in the ...
X-ray interference due to the superposition of two or more X-ray waves produces a new wave pattern. X-ray interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Two non-monochromatic X-ray ...
X-rays normally have a lower energy than gamma rays, and an older convention was to define the boundary as a wavelength of 10 −11 m (or a photon energy of 100 keV). [14] That threshold was driven by historic limitations of older X-ray tubes and low awareness of isomeric transitions. Modern technologies and discoveries have shown an overlap ...