high-energy radiation belt

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• High Energy Transient Explorer — (abrégé en HETE ; appelé également Explorer 79) est un satellite astronomique américain avec une participation internationale (principalement japonaise et française). L objectif principal de HETE est de réaliser la première étude… …   Wikipédia en Français

• Van Allen radiation belt — Van Allen radiation belts The Van Allen radiation belt is a torus of energetic charged particles (plasma) around Earth, which is held in place by Earth s magnetic field. It is believed that most of the particles that form the belts come from… …   Wikipedia

• Van Allen radiation belt — ☆ Van Allen radiation belt [van al′ən ] n. 〚after James A. Van Allen (1914 ), U.S. physicist〛 1. a broad, doughnut shaped region surrounding the earth and composed of high energy electrons and protons trapped in the earth s magnetic field at… …   Universalium

• Van Allen radiation belt — noun a) Either of two torus shaped areas of high energy charged particles which partly surround Earth, trapped by its magnetic field. The areas are characterised by intense radiation. When the belts overload , particles strike the upper… …   Wiktionary

• Van Allen radiation belt — ☆ Van Allen radiation belt [van al′ən ] n. [after James A. Van Allen (1914 ), U.S. physicist] 1. a broad, doughnut shaped region surrounding the earth and composed of high energy electrons and protons trapped in the earth s magnetic field at… …   English World dictionary

• Reuven Ramaty High Energy Solar Spectroscopic Imager — RHESSI (Vue d artiste) . Reuven Ramaty High Energy Solar Spectroscopic Imager (c est à dire imageur spectroscopique des hautes énergies solaires) ou RHESSI, plus rarement Explorer 81 est un observatoire solaire à rayons X de l agence spatiale… …   Wikipédia en Français

• High altitude nuclear explosion — High altitude nuclear explosions have historically been nuclear explosions which take place above altitudes of 50 km, still inside the Earth s atmosphere. Such explosions have been tests of nuclear weapons, used to determine the effects of the… …   Wikipedia

• High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project …   Wikipedia

• energy conversion — ▪ technology Introduction       the transformation of energy from forms provided by nature to forms that can be used by humans.       Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …   Universalium

• high-pressure phenomena — ▪ physics Introduction       changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …   Universalium

• Background radiation — This article is about ionizing radiation. For microwave background radiation from space, see Cosmic background radiation and cosmic background. Thermal radiation emitted by Earth is not considered in this category because it is not ionizing.… …   Wikipedia