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Oct 24, 2024 · Gamma-ray photons are between 10,000 and 10,000,000 times more energetic than the photons of visible light when they originate from radioactive atomic nuclei. Gamma rays with a million million times higher energy make up a very small part of the cosmic rays that reach Earth from supernovae or from other galaxies .
Because subatomic particles mostly have far shorter wavelengths than atomic nuclei, particle physics gamma rays are generally several orders of magnitude more energetic than nuclear decay gamma rays. Since gamma rays are at the top of the electromagnetic spectrum in terms of energy, all extremely high-energy photons are gamma rays; for example, a photon having the Planck energy would be a ...
By analogy to electronic transitions, muonic atom transitions are also said to produce X-rays, even though their energy may exceed 6 megaelectronvolts (0.96 pJ), [9] whereas there are many (77 known to be less than 10 keV (1.6 fJ)) low-energy nuclear transitions (e.g., the 7.6 eV (1.22 aJ) nuclear transition of thorium-229m), and, despite being one million-fold less energetic than some muonic ...
Table 29.3.1 29.3. 1. Gamma rays, a form of nuclear and cosmic EM radiation, can have the highest frequencies and, hence, the highest photon energies in the EM spectrum. For example, a γ γ -ray photon with f = 1021 Hz f = 10 21 H z has an energy E = hf = 6.63 ×10−13 J = 4.14MeV E = h f = 6.63 × 10 − 13 J = 4.14 M e V.
Nov 14, 2014 · The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays. Measuring electromagnetic radiation
Dec 28, 2022 · Gamma rays have wavelengths shorter than 10^-11 meters and frequencies above 30 x 10^18 hertz. The European Space Agency describes how gamma-ray photons have energies in excess of 100,000 ...
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Nov 3, 2024 · At the lower energy ranges, a gamma-ray photon is often completely absorbed by an atom and the gamma ray’s energy transferred to a single ejected electron (see photoelectric effect). Higher-energy gamma rays are more likely to scatter from the atomic electrons, depositing a fraction of their energy in each scattering event (see Compton effect).
