| 释义 |
pair production
pair productionn. The simultaneous creation of a subatomic particle and its antiparticle from another form of energy, especially the production of a positron and an electron from a gamma ray photon in a strong electric field, such as that surrounding a nucleus.pair production n (Nuclear Physics) the production of an electron and a positron from a gamma-ray photon in a strong field as that passes close to an atomic nucleus Thesaurus| Noun | 1. | pair production - the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleuspair creation, pair formationnatural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity" |
Translations
pair production
pair production The conversion of a high-energy (>1.022 MeV) gamma-ray photon, usually in the field of an atomic nucleus, into an electron and positron, which are formed simultaneously. See also annihilation; photon-photon absorption.pair production[′per prə‚dək·shən] (physics) The conversion of a photon into an electron and a positron when the photon traverses a strong electric field, such as that surrounding a nucleus or an electron. pair production
pair pro·duc·tioncreation of a positron and electron, each of mass 0.511 MeV, when an incident photon of energy greater than 1.02 MeV is absorbed by matter; occurs in high-energy radiotherapy.pair production
Related to pair production: photodisintegrationSynonyms for pair productionnoun the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleusSynonyms- pair creation
- pair formation
Related Words- natural action
- natural process
- action
- activity
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