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Dec 28, 2022 · Gamma rays are high-energy photons produced by some of the most violent events in the universe. Photons of light are massless particles that are essentially packets of energy. Because of a quantum ...
- Fermi Telescope
The Fermi Gamma-Ray Telescope is a space observatory...
- Swift Observatory
GRB 100621A, as the event was called, was said to be the...
- Fermi Telescope
Gamma rays are produced by a number of astronomical processes in which very high-energy electrons are produced. Such electrons produce secondary gamma rays by the mechanisms of bremsstrahlung, inverse Compton scattering and synchrotron radiation. A large fraction of such astronomical gamma rays are screened by Earth's atmosphere.
Nov 3, 2024 · gamma ray, electromagnetic radiation of the shortest wavelength and highest energy. Gamma rays are produced in the disintegration of radioactive atomic nuclei and in the decay of certain subatomic particles. The commonly accepted definitions of the gamma-ray and X-ray regions of the electromagnetic spectrum include some wavelength overlap, with ...
- A gamma ray is electromagnetic radiation of the shortest wavelength and highest energy. Gamma-ray radiation has wavelengths generally smaller than...
- Gamma rays are produced during the disintegration of radioactive atomic nuclei and the decay of certain subatomic particles. Gamma rays are also pr...
- The term gamma ray was coined by British physicist Ernest Rutherford in 1903, following early studies of the emissions of radioactive nuclei.
- Medical applications of gamma rays include the imaging technique of positron emission tomography (PET) and radiation therapies to treat cancerous t...
Aug 10, 2016 · Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes. On Earth, gamma waves are generated by nuclear explosions, lightning, and ...
Nov 18, 2014 · Processes that Create Cosmic Gamma Rays. There are several physical processes that generate cosmic gamma rays: A high-energy particle can collide with another particle. A particle can collide and annihilate with its anti-particle. An element can undergo radioactive decay. A charged particle can be accelerated.
Gamma rays are produced during the disintegration of radioactive atomic nuclei and the decay of certain subatomic particles. Gamma rays are also produced through the process of pair annihilation, in which an electron and its antiparticle, a positron, vanish and two photons are created. They can also be generated during the decay of some ...
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Sep 4, 2006 · Gamma-rays are produced on Earth from the radioactive decay of naturally occurring elements, and oncologists may use such gamma-rays to treat cancer tumors. Particle physicists can produce gamma-rays at accelerators such as Fermilab in Illinois or the Stanford Linear Accelerator in California, where they are used to study the properties of ...
