| positron |
an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
출처: wordnet.princeton.edu/perl/webwn
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| positron emission tomography |
using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)
출처: wordnet.princeton.edu/perl/webwn
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| positron |
(Or antielectron.) A positively charged subatomic particle with the same mass and charge magnitude as that of the electron. The electron's antiparticle, the positron was first observed in 1932 in cosmic rays by Carl Anderson using a Wilson cloud chamber. Boorse, HA, and L. Motz, 1966: The World of the Atom, Vol. II, 1261?267. Anderson, CD, 1961: Amer. J. Phys., 29, 825?30.
출처: amsglossary.allenpress.com/glossary/browse
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| positron emission tomography |
An imaging technique used for measuring blood flow and metabolism within body tissues, including the heart and brain.
출처: www.cnn.com/HEALTH/library/BN/00023.html
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| positron emission |
A nuclear reaction in which a positron is emitted. Positron emission leads to a decrease by one in the atomic number and no change in the mass number of the nuclide.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/p...
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