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- Positron_emission abstract "Positron emission or beta plus decay (β+ decay) is a particular type of radioactive decay and a subtype of beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe). Positron emission is mediated by the weak force. The positron is a type of beta particle (β+), the other beta particle being the electron (β−) emitted from the β− decay of a nucleus.An example of positron emission (β+ decay) is shown with magnesium-23 decaying into sodium-23:2312Mg → 2311Na + e+ + νeBecause positron emission decreases proton number relative to neutron number, positron decay happens typically in large \"proton-rich\" radionuclides. Positron decay results in nuclear transmutation, changing an atom of a chemical element into an atom of an element with an atomic number that is less by one unit.Positron emission should not be confused with electron emission or beta minus decay (β− decay), which occurs when a neutron turns into a proton and the nucleus emits an electron and an antineutrino.Electron capture (sometimes called inverse beta decay) is also occasionally classified as a type of beta decay. In some ways, electron capture can be regarded as an equivalent to positron emission, since capture of an electron results in the same transmutation as emission of a positron. Electron capture occurs when electrons are available and requires less energy difference between parent and daughter, so occurs much more often in smaller atoms than positron emission does. Electron capture always competes with positron emission where the latter is seen, and in addition, occurs as the only type of beta decay in proton-rich nuclei when there is not enough decay energy to support positron emission.".
- Positron_emission wikiPageExternalLink livechart.
- Positron_emission wikiPageID "391267".
- Positron_emission wikiPageLength "8155".
- Positron_emission wikiPageOutDegree "45".
- Positron_emission wikiPageRevisionID "702090644".
- Positron_emission wikiPageWikiLink Aluminium-26.
- Positron_emission wikiPageWikiLink Atomic_number.
- Positron_emission wikiPageWikiLink Beta_decay.
- Positron_emission wikiPageWikiLink Beta_particle.
- Positron_emission wikiPageWikiLink Boron.
- Positron_emission wikiPageWikiLink Branching_fraction.
- Positron_emission wikiPageWikiLink Carl_David_Anderson.
- Positron_emission wikiPageWikiLink Category:Nuclear_physics.
- Positron_emission wikiPageWikiLink Category:Radiation.
- Positron_emission wikiPageWikiLink Category:Radioactivity.
- Positron_emission wikiPageWikiLink Cosmic_ray.
- Positron_emission wikiPageWikiLink Electron_capture.
- Positron_emission wikiPageWikiLink Electron_neutrino.
- Positron_emission wikiPageWikiLink Electronvolt.
- Positron_emission wikiPageWikiLink Elementary_particle.
- Positron_emission wikiPageWikiLink Flavour_(particle_physics).
- Positron_emission wikiPageWikiLink Fluorine-18.
- Positron_emission wikiPageWikiLink Frédéric_Joliot-Curie.
- Positron_emission wikiPageWikiLink Irène_Joliot-Curie.
- Positron_emission wikiPageWikiLink Isotope.
- Positron_emission wikiPageWikiLink Isotopes_of_carbon.
- Positron_emission wikiPageWikiLink Isotopes_of_iodine.
- Positron_emission wikiPageWikiLink Isotopes_of_magnesium.
- Positron_emission wikiPageWikiLink Isotopes_of_oxygen.
- Positron_emission wikiPageWikiLink Isotopes_of_sodium.
- Positron_emission wikiPageWikiLink Neutrino.
- Positron_emission wikiPageWikiLink Neutron.
- Positron_emission wikiPageWikiLink Nitrogen-13.
- Positron_emission wikiPageWikiLink Nuclear_transmutation.
- Positron_emission wikiPageWikiLink Positron.
- Positron_emission wikiPageWikiLink Positron_emission_tomography.
- Positron_emission wikiPageWikiLink Potassium-40.
- Positron_emission wikiPageWikiLink Proton.
- Positron_emission wikiPageWikiLink Quark.
- Positron_emission wikiPageWikiLink Radioactive_decay.
- Positron_emission wikiPageWikiLink Radionuclide.
- Positron_emission wikiPageWikiLink Weak_interaction.
- Positron_emission wikiPageWikiLink File:Ndslivechart.png.
- Positron_emission wikiPageWikiLinkText "".
- Positron_emission wikiPageWikiLinkText "Positron emission".
- Positron_emission wikiPageWikiLinkText "beta-plus decay".
- Positron_emission wikiPageWikiLinkText "beta-plus".
- Positron_emission wikiPageWikiLinkText "inverse beta decay".
- Positron_emission wikiPageWikiLinkText "positron emission".
- Positron_emission wikiPageWikiLinkText "positron emitter".
- Positron_emission wikiPageWikiLinkText "positron emitting".
- Positron_emission wikiPageWikiLinkText "positrons emitted".
- Positron_emission wikiPageWikiLinkText "spontaneous emission of a positron".
- Positron_emission wikiPageWikiLinkText "β+".
- Positron_emission wikiPageUsesTemplate Template:Authority_control.
- Positron_emission wikiPageUsesTemplate Template:Nuclear_physics.
- Positron_emission wikiPageUsesTemplate Template:Nuclear_processes.
- Positron_emission wikiPageUsesTemplate Template:Nuclide.
- Positron_emission wikiPageUsesTemplate Template:Nuclide2.
- Positron_emission wikiPageUsesTemplate Template:Reflist.
- Positron_emission wikiPageUsesTemplate Template:SimpleNuclide.
- Positron_emission wikiPageUsesTemplate Template:SubatomicParticle.
- Positron_emission wikiPageUsesTemplate Template:Subatomic_particle.
- Positron_emission subject Category:Nuclear_physics.
- Positron_emission subject Category:Radiation.
- Positron_emission subject Category:Radioactivity.
- Positron_emission hypernym Type.
- Positron_emission type Mechanic.
- Positron_emission type Physic.
- Positron_emission type Redirect.
- Positron_emission type Thing.
- Positron_emission comment "Positron emission or beta plus decay (β+ decay) is a particular type of radioactive decay and a subtype of beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe). Positron emission is mediated by the weak force.".
- Positron_emission label "Positron emission".
- Positron_emission sameAs Q1357356.
- Positron_emission sameAs إصدار_بوزيتروني.
- Positron_emission sameAs Emisión_de_positrones.
- Positron_emission sameAs Emissió_de_positrons.
- Positron_emission sameAs نشر_پوزیترون.
- Positron_emission sameAs Positroniemissio.
- Positron_emission sameAs Émission_de_positron.
- Positron_emission sameAs 陽電子放出.
- Positron_emission sameAs 양전자_방출.
- Positron_emission sameAs Pemancaran_positron.
- Positron_emission sameAs Rozpad_beta_plus.
- Positron_emission sameAs m.022r2l.
- Positron_emission sameAs Позитронный_распад.
- Positron_emission sameAs การปล่อยโพซิตรอน.
- Positron_emission sameAs Q1357356.
- Positron_emission sameAs 正电子发射.
- Positron_emission wasDerivedFrom Positron_emission?oldid=702090644.
- Positron_emission isPrimaryTopicOf Positron_emission.