Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Cosmic_ray_spallation> ?p ?o }
- Cosmic_ray_spallation abstract "Cosmic ray spallation is a form of naturally occurring nuclear fission and nucleosynthesis. It refers to the formation of elements from the impact of cosmic rays on an object. Cosmic rays are highly energetic charged particles from outside of Earth ranging from protons, alpha particles, and nuclei of many heavier elements. About 1% of cosmic rays also consist of free electrons.Cosmic rays cause spallation when a ray particle (e.g. a proton) impacts with matter, including other cosmic rays. The result of the collision is the expulsion of large numbers of nucleons (protons and neutrons) from the object hit. This process goes on not only in deep space, but in Earth's upper atmosphere and crustal surface (typically the upper ten meters) due to the ongoing impact of cosmic rays.Cosmic ray spallation after the Big Bang is thought to be responsible for the abundance in the universe of some light elements such as lithium, beryllium, and boron. This process (cosmogenic nucleosynthesis) was discovered somewhat by accident during the 1970s: models of Big Bang nucleosynthesis suggested that the amount of deuterium was too large to be consistent with the expansion rate of the universe and there was therefore great interest in processes that could generate deuterium after the Big Bang. Cosmic ray spallation was investigated as a possible process to generate deuterium. As it turned out, spallation could not generate much deuterium, nor could nucleosynthesis in stars . However, the new studies of spallation showed that this process could generate lithium, beryllium and boron, and indeed these isotopes are over-represented in cosmic ray nuclei, as compared with solar atmospheres (whereas hydrogen and helium are present in about primordial ratios in cosmic rays).In addition to the above light elements, tritium and isotopes of aluminium, carbon (carbon-14), chlorine, iodine and neon are formed within solar system materials through cosmic ray spallation, and are termed cosmogenic nuclides. Since they remain trapped in the atmosphere or rock in which they formed, some can be very useful in the dating of materials by cosmogenic radionuclide dating, particularly in the geological field. In formation of a cosmogenic nuclide, a cosmic ray interacts with the nucleus of an in situ solar system atom, causing cosmic ray spallation. These isotopes are produced within earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites. By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes. There are both radioactive and stable cosmogenic isotopes. Some of the well-known naturally-occurring radioisotopes are tritium, carbon-14 and phosphorus-32.The timing of their formation determines which subset of nuclides formed by cosmic ray spallation, are termed primordial or cosmogenic (a nuclide cannot belong to both classes). By convention, certain stable nuclides of lithium, beryllium, and boron thought to have been produced by cosmic ray spallation in the period of time between the Big Bang and the solar system's formation (thus making these primordial nuclides, by definition) are not termed "cosmogenic," even though they were formed by the same process as the cosmogenic nuclides (although at an earlier time). In contrast, the radioactive nuclide beryllium-7 falls into this light element range, but this nuclide has a half-life too short for it to have been formed before the formation of the solar system, so that it cannot be a primordial nuclide. Since the cosmic ray spallation route is the most likely source of beryllium-7 in the environment, it is therefore cosmogenic.".
- Cosmic_ray_spallation wikiPageExternalLink search='cosmic%20ray%20spallation'.
- Cosmic_ray_spallation wikiPageExternalLink search='cosmic%20ray%20spallation'Ultra.
- Cosmic_ray_spallation wikiPageExternalLink 325335a0.html.
- Cosmic_ray_spallation wikiPageExternalLink cris.htmlCosmic.
- Cosmic_ray_spallation wikiPageID "2447137".
- Cosmic_ray_spallation wikiPageLength "5763".
- Cosmic_ray_spallation wikiPageOutDegree "62".
- Cosmic_ray_spallation wikiPageRevisionID "622896825".
- Cosmic_ray_spallation wikiPageWikiLink Alpha_particle.
- Cosmic_ray_spallation wikiPageWikiLink Aluminium.
- Cosmic_ray_spallation wikiPageWikiLink Astronomy.
- Cosmic_ray_spallation wikiPageWikiLink Astrophysics.
- Cosmic_ray_spallation wikiPageWikiLink Atmosphere_of_Earth.
- Cosmic_ray_spallation wikiPageWikiLink Atom.
- Cosmic_ray_spallation wikiPageWikiLink Atomic_nucleus.
- Cosmic_ray_spallation wikiPageWikiLink Beryllium.
- Cosmic_ray_spallation wikiPageWikiLink Beryllium-7.
- Cosmic_ray_spallation wikiPageWikiLink Big_Bang.
- Cosmic_ray_spallation wikiPageWikiLink Big_Bang_nucleosynthesis.
- Cosmic_ray_spallation wikiPageWikiLink Boron.
- Cosmic_ray_spallation wikiPageWikiLink Carbon.
- Cosmic_ray_spallation wikiPageWikiLink Carbon-14.
- Cosmic_ray_spallation wikiPageWikiLink Category:Cosmic_rays.
- Cosmic_ray_spallation wikiPageWikiLink Category:Nucleosynthesis.
- Cosmic_ray_spallation wikiPageWikiLink Chemical_element.
- Cosmic_ray_spallation wikiPageWikiLink Chlorine.
- Cosmic_ray_spallation wikiPageWikiLink Cosmic_ray.
- Cosmic_ray_spallation wikiPageWikiLink Cosmic_rays.
- Cosmic_ray_spallation wikiPageWikiLink Cosmogenic_nuclide.
- Cosmic_ray_spallation wikiPageWikiLink Cosmogenic_radionuclide_dating.
- Cosmic_ray_spallation wikiPageWikiLink Deuterium.
- Cosmic_ray_spallation wikiPageWikiLink Earth.
- Cosmic_ray_spallation wikiPageWikiLink Earths_atmosphere.
- Cosmic_ray_spallation wikiPageWikiLink Geology.
- Cosmic_ray_spallation wikiPageWikiLink ISIS_neutron_source.
- Cosmic_ray_spallation wikiPageWikiLink In_situ.
- Cosmic_ray_spallation wikiPageWikiLink International_Cosmic_Ray_Conference.
- Cosmic_ray_spallation wikiPageWikiLink Iodine.
- Cosmic_ray_spallation wikiPageWikiLink Isotope.
- Cosmic_ray_spallation wikiPageWikiLink Isotopes.
- Cosmic_ray_spallation wikiPageWikiLink Isotopes_of_beryllium.
- Cosmic_ray_spallation wikiPageWikiLink Lithium.
- Cosmic_ray_spallation wikiPageWikiLink Matter.
- Cosmic_ray_spallation wikiPageWikiLink Meteorite.
- Cosmic_ray_spallation wikiPageWikiLink Neon.
- Cosmic_ray_spallation wikiPageWikiLink Nuclear_fission.
- Cosmic_ray_spallation wikiPageWikiLink Nucleon.
- Cosmic_ray_spallation wikiPageWikiLink Nucleons.
- Cosmic_ray_spallation wikiPageWikiLink Nucleosynthesis.
- Cosmic_ray_spallation wikiPageWikiLink Paul_Scherrer_Institute.
- Cosmic_ray_spallation wikiPageWikiLink Phosphorus.
- Cosmic_ray_spallation wikiPageWikiLink Primordial_nuclide.
- Cosmic_ray_spallation wikiPageWikiLink Proton.
- Cosmic_ray_spallation wikiPageWikiLink Radioactive_isotope.
- Cosmic_ray_spallation wikiPageWikiLink Radionuclide.
- Cosmic_ray_spallation wikiPageWikiLink Rock_(geology).
- Cosmic_ray_spallation wikiPageWikiLink Scientist.
- Cosmic_ray_spallation wikiPageWikiLink Soil.
- Cosmic_ray_spallation wikiPageWikiLink Spall.
- Cosmic_ray_spallation wikiPageWikiLink Spallation.
- Cosmic_ray_spallation wikiPageWikiLink Spallation_Neutron_Source.
- Cosmic_ray_spallation wikiPageWikiLink Spalling.
- Cosmic_ray_spallation wikiPageWikiLink Stable_isotope.
- Cosmic_ray_spallation wikiPageWikiLink Stable_isotope_ratio.
- Cosmic_ray_spallation wikiPageWikiLink Subatomic_particle.
- Cosmic_ray_spallation wikiPageWikiLink Surface_exposure_dating.
- Cosmic_ray_spallation wikiPageWikiLink Tritium.
- Cosmic_ray_spallation wikiPageWikiLinkText "Cosmic ray spallation".
- Cosmic_ray_spallation wikiPageWikiLinkText "Spallation".
- Cosmic_ray_spallation wikiPageWikiLinkText "assorted smaller products".
- Cosmic_ray_spallation wikiPageWikiLinkText "cosmic ray spallation".
- Cosmic_ray_spallation wikiPageWikiLinkText "cosmic ray".
- Cosmic_ray_spallation wikiPageWikiLinkText "spallation reactions".
- Cosmic_ray_spallation wikiPageWikiLinkText "spallation".
- Cosmic_ray_spallation hasPhotoCollection Cosmic_ray_spallation.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:Citation_needed.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:No_footnotes.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:Nucleosynthesis.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:Nucleosynthesis_periodic_table.svg.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:Portal.
- Cosmic_ray_spallation wikiPageUsesTemplate Template:Reflist.
- Cosmic_ray_spallation subject Category:Cosmic_rays.
- Cosmic_ray_spallation subject Category:Nucleosynthesis.
- Cosmic_ray_spallation hypernym Form.
- Cosmic_ray_spallation type Article.
- Cosmic_ray_spallation type Article.
- Cosmic_ray_spallation type Astrophysic.
- Cosmic_ray_spallation type Physic.
- Cosmic_ray_spallation comment "Cosmic ray spallation is a form of naturally occurring nuclear fission and nucleosynthesis. It refers to the formation of elements from the impact of cosmic rays on an object. Cosmic rays are highly energetic charged particles from outside of Earth ranging from protons, alpha particles, and nuclei of many heavier elements. About 1% of cosmic rays also consist of free electrons.Cosmic rays cause spallation when a ray particle (e.g. a proton) impacts with matter, including other cosmic rays.".
- Cosmic_ray_spallation label "Cosmic ray spallation".
- Cosmic_ray_spallation sameAs تشظية_الأشعة_الكونية.
- Cosmic_ray_spallation sameAs Espalación_de_rayos_cósmicos.
- Cosmic_ray_spallation sameAs Spallation_des_rayons_cosmiques.
- Cosmic_ray_spallation sameAs Spalasi_sinar_kosmis.
- Cosmic_ray_spallation sameAs 宇宙線による核破砕.
- Cosmic_ray_spallation sameAs 우주선_파쇄.
- Cosmic_ray_spallation sameAs m.07dqk4.
- Cosmic_ray_spallation sameAs Q1062473.
- Cosmic_ray_spallation sameAs Q1062473.