Very high energy electromagnetic radiation, like light or X-rays, but much higher in energy and frequency (and shorter in wavelength).
High-energy electromagnetic radiation emitted by certain radioactive nuclei. These rays have high energy and a short wave length. Stopping gamma rays requires thick layers of dense materials such as lead. Gamma rays are potentially lethal to humans depending on the dose.
(-rays) gamma radiation. 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.
A high-energy electromagnetic, ionizing radiation that comes from the nucleus of an atom undergoing radioactive decay. Gamma rays are similar to medical X-rays but are emitted at very specific energies characteristic of their decaying atoms. Gamma rays penetrate body tissues and may damage cells. People exposed to the atomic bombings of Hiroshima and Nagasaki were exposed to gamma radiation. Cesium-137 is a source of gamma radiation.
Penetrating electromagnetic waves or rays emitted from nuclei during radioactive decay, similar to x-rays. Dense materials such as concrete and lead are used to provide shielding against gamma radiation.
Very short wavelength forms of the electromagnetic spectrum.
Same as X-rays, but from a different radioactive source.
high energy electromagnetic radiation originating within the nucleus of a radioactive atom.
A type of very penetrating radiation.
High energy electromagnetic radiation (in excess of 100 keV) which can be generated by nuclear reactions in space. This is an image of the EGRET gamma ray all-sky survey - above 100 MeV. More about gamma rays in "Imagine the Universe!"...
A form of radiation that comes from a radioisotope. Gamma rays are commonly used in radiotherapy to treat cancer.
Electromagnetic radiations of high energy photons, originating in atomic nuclei and accompanying many nuclear reactions. They can penetrate deeply into body tissue and many materials. Shielding against gamma radiation requires thick layers of dense materials, such as lead. Gamma rays are potentially lethal to humans. See; Photon.
Extremely high-energy radiation observed during large, very energetic solar flares. Gamma rays are more energetic, and have shorter wavelengths than all other types of electromagnetic radiation. ( go to first use in the text)
Electromagnetic radiation with the smallest known wavelengths and the highest frequencies.
Gamma rays are electromagnetic waves or photons emitted from the nucleus (center) of an atom. See also: photon.
The most energetic form of electromagnetic radiation. Very high frequency, and short wavelength. Gamma radiation is produced within the sun when Fusion occurs. Gamma radiation is also produced by certain radioactive materials. Gamma radiation can be shielded using a few inches of lead.
Electromagnetic rays of very short wavelength, produced in radio-active decay or by collisions of elementary particles.
The most energetic form of electromagnetic radiation [followed, with progressively lower energies, by X-rays, ultraviolet rays, optical radiation (light), infrared radiation, and radio waves].
One of the three types of rays produced by radioactive disintegration, but gamma rays are the only one comprised of electromagnetic radiation. Gamma rays have a very short wavelength, and have the greatest penetrative power of all radioactive emissions.
Electromagnetic rays similar to X-rays, emitted in an unstable atom's nucleus, which travel in straight paths at the speed of light, penetrate matter readily, but do not make the material radioactive. They penetrate a greater area than alpha or beta rays, but do less damage because they are weaker form of radiation.
High-energy, short-wavelength electromagnetic radiation accompanying fission, radioactive decay, or nuclear reactions. Gamma rays are very penetrating and require relatively thick shields to absorb the rays effectively.
short-wavelength electromagnetic waves
It is form of electromagnetic radiation containing the shortest wavelength of the spectrum. These rays can easily penetrate matter.
Electromagnetic radiation emitted by the atomic nucleus. Gamma rays have high penetrating ability compared with alpha and beta particles.
High-energy electromatic radiation; a form of ionizing radiation of higher energy than X-rays, that penetrates very deep into body\tissues.
The shortest wavelength of electromagnetic radiation. For more information see Gamma waves (NASA,USA).
the form of light (electromagnetic radiation) with the shortest wavelength and the most energy
High-energy rays that come from a radioactive source such as cobalt-60.
Form of electromagnetic radiation which contains the shortest wavelength of the spectrum. Gamma rays easily penetrate matter because of their short wavelength.
A highly penetrating type of nuclear radiation, similar to x-rays and light, except that it comes from within the nucleus of an atom, and, in general, has a shorter wavelength. Gamma rays emission is a decay mode by which excited state of a nucleus de-excite to lower (more stable) state in the same nucleus. In our diagrams, a gamma ray is represented by this
Electromagnetic ionizing radiation, emitted by specific radioactive materials.
The shortest of electromagnetic radiations, emitted by some radioactive substances
Penetrating, high energy, shortâ€“wavelength electromagnetic radiation. Gamma radiation frequently accompanies alpha and beta emissions and always accompanies fission. Gamma rays are essentially similar to x-rays, but are usually more energetic, and originate in the nucleus.
Electromagnetic radiation of wave lengths shorter than x-rays which are given off by certain radioactive substances.
Very short, highly-penetrative electromagnetic radiation with a shorter wavelength than X-rays; produced in general by emission from atomic nuclei.
Very high frequency electromagnetic radiation.
High frequency electromagnetic radiation from radio active particles.
Gamma rays are an example of electromagnetic radiation, as is visible light. Gamma rays originate from the nucleus of an atom. They are capable of traveling long distances through air and most other materials. Gamma rays require more "shielding" material, such as lead or steel, to reduce their numbers than is required for alpha and beta particles.
shortest wavelength (and therefore highest energy) type of electromagnetic or nuclear radiation
High energy radiation (energies in excess of 100 keV) observed during large, extremely energetic solar flares.
a type of electromagnetic radiation with a very short wavelength and high Energy level. Generally, emitted during radioactive decay of a substance.
High energy electromagnetic radiation emitted by radioactive decay. Gamma rays have wavelengths shorter than 1 Angstrom unit.
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 are very similar to x-rays.
Photons (of electromagnetic radiation) of energy higher than those of x rays; the most energetic form of electromagnetic radiation.
A kind of deeply penetrating radiation that is emitted by radioactive materials. Gamma rays are used in nuclear medicine , in brachytherapy , and in external beam radiation therapy. Gamma rays are equivalent to high energy x-rays.
High-energy, short-wavelength electromagnetic radiation. Gamma radiation frequently accompanies alpha and beta emissions and always accompanies fission. Gamma rays are very penetrating and are stopped best or shielded against by dense materials, such as lead or depleted uranium. Gamma rays are indistinguishable from x rays except for their source. Gamma rays originate inside the nucleus; x rays from outside.
A type of electromagnetic radiation used in external-beam radiation and brachytherapy.
very high energy electromagnetic radiation with the shortest wavelengths and the highest frequencies
High-energy electromagnetic radiation, invisible to the naked eye, with wavelengths shorter than X-rays. Gamma rays are emitted from the sun during large eruptions on the solar surface. (TOP OF THE PAGE) (CLOSE WINDOW)
short, penetrating, high-energy wavelengths emitted by radioactive substances
Form of ionizing electromagnetic radiation with a high energy content emitted by some radioisotopes. They readily penetrate body tissues. See also alpha particle, beta particle.
are high energy, penetrating electromagnetic rays produced by some radioactive compounds
electromagnetic radiation with a wavelength of 10 picometers.
High-energy electromagnetic radiation, invisible to the naked eye, with wavelengths shorter than x-rays. Gamma rays are emitted from the Sun during the most energetic flares on the solar surface.
High energy, very short wavelength electromagnetic radiation which can be generated by nuclear reactions (i.e., fission and fusion).
electromagnetic waves of the highest frequencies known, originally discovered as an emission of radioactive substances.
the radiation with the higher frequency and energy known; its wavelength ranges between 10 -12 cm (10-4 Angstrom) and 10-9 cm (0.1 Angstrom).
Part of the electromagnetic spectrum similar to X-rays but with shorter wavelengths and greater penetrative power (they can only be stopped by layers of lead or thick concrete).
Waves of pure energy, similar to x-rays. Gamma rays travel at the speed of light through air or open spaces. Concrete, lead, or steel will block gamma rays.
Electromagnetic radiation emitted by a nucleus.
Short wavelength electromagnetic radiation higher in frequency and energy than visible and ultraviolet light. Gamma rays are emitted from the nucleus of an atom. These high energy photons are much more penetrating than alpha and beta particles.
High energy electro-magnetic radiation from the atomic nucleus, virtually identical to X-rays.
A very high energy form of radiation similar to X-rays emitted from the nucleus of an atom that can penetrate steel and concrete.
(DOD) High energy electromagnetic radiation emitted from atomic nuclei during a nuclear reaction. Gamma rays and very high energy X-rays differ only in origin. X-rays do not originate from atomic nuclei but are produced in other ways.
A form of electromagnetic radiation similar to x-rays.
Light with the shortest wavelengths and the highest energies and frequencies in the electromagnetic spectrum; also called gamma radiation.