gamma rays
electromagnetic radiation from the nuclei of atoms (similar to X rays but with a shorter wave length) | ||||
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Gamma Rays definition was found in categories: Computer & Internet(1) Science & Technology(3) Medicine(1) Language, Idioms & Slang(1) Encyclopedia(1)
Gamma Rays Definition from Computer & Internet Dictionaries & Glossaries
| Integrated Circuit Terminology |
Gamma Rays
electromagnetic radiation with a wavelength of <10 picometers.
electromagnetic radiation with a wavelength of <10 picometers.
Gamma Rays Definition from Science & Technology Dictionaries & Glossaries
| ASTRONOMY UNBOUND |
Gamma rays
A high energy form of electromagnetic radiation. The wavelength of gamma rays is typically less than 10-12 metres. They differ from X-rays in that they originate in the nucleus of atoms. A gamma ray is a photon, i.e. a discrete packet of many waves. Like all electromagnetic radiation it travels at the speed of light and when thought of as a particle is a boson with intrinsic angular momentum (spin) 1. It carries a quantum of energy (E=hf, where h is Planck's constant and f the frequency of the wave) and linear momentum and hence exerts radiation pressure. There are no gamma rays in the nucleus, any more than there are any photons in an atom, they are created at the instant of emission.
Some very hot (> 106 K) neutron stars emit radiant energy, not in the visible region, but in the form of gamma rays (possibly bremsstrahlung ). One such example is Pulsar 1055-52.
A high energy form of electromagnetic radiation. The wavelength of gamma rays is typically less than 10-12 metres. They differ from X-rays in that they originate in the nucleus of atoms. A gamma ray is a photon, i.e. a discrete packet of many waves. Like all electromagnetic radiation it travels at the speed of light and when thought of as a particle is a boson with intrinsic angular momentum (spin) 1. It carries a quantum of energy (E=hf, where h is Planck's constant and f the frequency of the wave) and linear momentum and hence exerts radiation pressure. There are no gamma rays in the nucleus, any more than there are any photons in an atom, they are created at the instant of emission.
Some very hot (> 106 K) neutron stars emit radiant energy, not in the visible region, but in the form of gamma rays (possibly bremsstrahlung ). One such example is Pulsar 1055-52.
| General Chemistry Glossary |
gamma rays (gamma radiation)
(
-rays) A very high energy form of electromagnetic radiation , typically with wavelengths of less than 3 pm. Gamma rays are produced by certain nuclear decay processes, and are used to sterilize food.
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| Solar Energy |
Gamma Rays
High energy radiation (energies in excess of 100 keV) observed during large, extremely energetic solar flares .
High energy radiation (energies in excess of 100 keV) observed during large, extremely energetic solar flares .
Gamma Rays Definition from Medicine Dictionaries & Glossaries
| CDC Radiological Terms |
Gamma rays
high-energy electromagnetic radiation emitted by certain radionuclides when their nuclei transition from a higher to a lower energy state. These rays have high energy and a short wave length. All gamma rays emitted from a given isotope have the same energy, a characteristic that enables scientists to identify which gamma emitters are present in a sample. Gamma rays penetrate tissue farther than do beta or alpha particles, but leave a lower concentration of ions in their path to potentially cause cell damage. Gamma rays are very similar to x-rays. See also neutron.
high-energy electromagnetic radiation emitted by certain radionuclides when their nuclei transition from a higher to a lower energy state. These rays have high energy and a short wave length. All gamma rays emitted from a given isotope have the same energy, a characteristic that enables scientists to identify which gamma emitters are present in a sample. Gamma rays penetrate tissue farther than do beta or alpha particles, but leave a lower concentration of ions in their path to potentially cause cell damage. Gamma rays are very similar to x-rays. See also neutron.
Gamma Rays Definition from Language, Idioms & Slang Dictionaries & Glossaries
| hEnglish - advanced version |
gamma rays
gamma rays
\gam"ma rays\ (physics) very penetrating rays not appreciably deflected by a magnetic or electric field, emitted by radioactive substances. the prevailing view is that they are non-periodic ether pulses differing from r?ntgen rays only in being more penetrating.
gamma rays
\gam"ma rays\ (physics) very penetrating rays not appreciably deflected by a magnetic or electric field, emitted by radioactive substances. the prevailing view is that they are non-periodic ether pulses differing from r?ntgen rays only in being more penetrating.
Gamma Rays Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Gamma ray
Gamma rays or gamma-ray (denoted as γ) are forms of electromagnetic radiation (EMR) or light emissions of a specific frequency produced from sub-atomic particle interaction, such as electron-positron annihilation and radioactive decay; most are generated from nuclear reactions occurring within the interstellar medium of space. Gamma rays are generally characterized as electromagnetic radiation, having the highest frequency and energy, and also the shortest wavelength, within the electromagnetic spectrum, i.e. high energy photons. Due to their high energy content, they are able to cause serious damage when absorbed by living cells.
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