Look up: POSITRON


  1. Positron
    [disambiguation] A positron is an elementary particle of antimatter. Positron may also refer to: ...
    Found op http://en.wikipedia.org/wiki/Positron_(disambiguation)

  2. Positron
    A Nuclear particle with the mass of an electron but opposite charge.
    Found op http://home.nas.net/~dbc/cic_hamilton/dictionary/a.html

  3. Positron
    The positron has properties which are identical to those of a negatively charged Electron , except that it has a positive charge. Positrons are unstable in matter and disappear by Annihilation with negatively charged electrons. This produces two Gamma Rays , each of 0.511 MeV which move in opposite ...
    Found op http://www.ionactive.co.uk/glossary.html

  4. positron
    [n] - an elementary particle with positive charge
    Found op http://www.webdictionary.co.uk/definition.php?query=positron

  5. Positron
    See Beta Particle.
    Found op http://www.encyclo.co.uk/local/20474

  6. Positron
    The antiparticle of the electron. Discovered by Anderson in 1931. See also: Antiparticle, Blackett, Patrick Maynard Stuart, Electron, Electron-Positron Annihilation.
    Found op http://www.diracdelta.co.uk/science/source/p/o/positron/source.html

  7. Positron
    A Nuclear particle with the mass of an electron but opposite charge.
    Found op http://www.allchemicals.info/index/action/detail/keyword/P/id/1059569624.ph

  8. positron
    Positron is the antiparticle of the electron. It has the same mass and spin as an electron, and an equal but opposite charge.
    Found op http://www.ktf-split.hr/periodni/en/abc/p.html

  9. positron
    A subatomic particle of mass and charge equal to the electron but of opposite (i.e., positive) charge. ... Synonym: positive electron. ... (05 Mar 2000) ...
    Found op http://www.mondofacto.com/facts/dictionary?positron

  10. positron
    antielectron noun an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
    Found op http://wordnetweb.princeton.edu/perl/webwn?s=positron

  11. positron
    (poz´ĭ-tron) the antiparticle of the electron. When a positron is emitted by a radionuclide it combines with an electron and both undergo annihilation, producing two 511-keV gamma rays traveling in opposite directions. This effect is used in positron emission tomography.
    Found op http://www.encyclo.co.uk/local/21001

  12. positron
    positively charged subatomic particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of a negative ... [24 related articles]
    Found op http://www.britannica.com/eb/a-z/p/99



  1. positron
    positron, antielectron 1. An elementary particle having the same mass and magnitude of charge as an electron but exhibiting a positive charge; a positive electron. 2. A positively charged particle of the same mass and magnititude of charge as an electron; a positive electron.
    Found op http://www.wordinfo.info/words/index/info/view_unit/2190/3

  2. Positron
    The antiparticle of the electron. It has the same mass as the electron but opposite (positive) electrical charge.
    Found op http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

  3. Positron
    0.510998910(13) MeV/c2 | decay_time = | decay_particle = | electric_charge = +1 e The positron or antielectron is the antiparticle or the antimatter counterpart of the electron. The positron has an electric charge of +1e, a spin of ½, and has the same mass as an electron. When a low-energy positro...
    Found op http://en.wikipedia.org/wiki/Positron

  4. Positron
    The antiparticle of the electron. It has the same mass as the electron but opposite (positive) electrical charge.
    Found op http://www-bdnew.fnal.gov/operations/accgloss/gloss.html#A

  5. positron
    elementary particle with one positive elementary electric charge and the same rest mass as the electron
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=111-14-12

  6. positron
    elementary particle with one positive electric charge of +e and the same rest mass as the electron
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=393-11-08

  7. positron
    an electron with positive charge
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-02-58

  8. positron
    Anderson's cloud chamber picture of cosmic radiation from 1932 showing for the first time the existence of the anti-electron that we now call the positron. In the picture a charged particle is seen entering from the bottom at high energy. It then looses some of the energy in passing through the 6 mm...
    Found op http://www.daviddarling.info/encyclopedia/P/positron.html

  9. positron
    positron: see antiparticle.
    Found op http://www.infoplease.com/ce6/sci/A0917692.html

  10. Positron
    A positron is a positively-charged particle of the same mass as the electron and with a charge equivalent but opposite in sign to that of the electron.
    Found op http://www.probertencyclopaedia.com/browse/GP.HTM

  11. positron
    (β+) Type: Term Pronunciation: poz′i-tron Definitions: 1. A subatomic particle of mass and charge equal to the electron but of opposite (positive) charge. Synonyms: positive electron
    Found op http://www.medilexicon.com/medicaldictionary.php?t=71371

  12. positron
    Antiparticle of the electron; an elementary particle having the same mass as an electron but exhibiting a positive charge. The positron was discovered in 1932 by US physicist Carl Anderson at the California Institute of Technology, USA, its existence having been predicted by the British physicist Pa...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0029010.html

  13. Positron
    Antiparticle of the electron.
    Found op http://www2.slac.stanford.edu/vvc/glossary.html

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