| cosmic rays |
Cosmic rays can loosely be defined as energetic particles originating outside of the Earth. The composition includes electrons, protons, gamma rays, and atomic nuclei from a large region of the periodic table. The kinetic energies of these particles span over fourteen orders of magnitude, with the flux of cosmic rays on the Earth's surface falling approximately as the inverse cube of the energy. The wide variety of particle energies is reflected in the wide variety of sources. ...
출처: en.wikipedia.org/wiki/Cosmic_rays
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| cosmic rays |
(Or cosmic radiation.) Without qualification, usually means the primary cosmic rays of extra-terrestrial origin that continually bombard the earth and consist mostly of high-energy protons, about 9% helium and heavier nuclei, a small percentage of electrons, and some gamma rays. The energies of cosmic rays are well in excess of billions of electron volts. Secondary cosmic rays result from interactions between primary rays and atoms in the earth's atmosphere. ...
출처: amsglossary.allenpress.com/glossary/browse
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| cosmic rays |
A stream of ionizing radiation (chiefly of protons, alpha particles, and other atomic nuclei).
출처: www.nsc.org/ehc/guidebks/wippglos.htm
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| cosmic rays |
Streams of very high energy nuclear particles, commonly protons, that bombard the Earth and Moon from all directions.
출처: history.nasa.gov/EP-95/glossary.htm
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| cosmic rays |
Rays of extremely high energy, originating in outer space, which enter the earth’s atmosphere and, having undergone several transformations, can still be detected at great depths underground. The main component of these rays are high-energy particles (protons, helium nuclei, heavy atomic nuclei and leptons), as well as X-rays and γ-rays. Only a small percentage of cosmic radiation is generated in the sun. ...
출처: www.desy.de/pr-info/desyhome/html/presse/glossary....
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