TERMIUM Plus®

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BETA RAY [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-11-30

English

Subject field(s)
  • Scientific Instruments
DEF

An instrument which measures a quantity (such as pressure or temperature) in absolute units by means of simple physical measurements on the instrument.

CONT

The beta ray spectrometer was an absolute instrument in that a measurement of the defining slit dimensions for the conversion electrons and the magnetic field determined the electron energy.

OBS

absolute instrument: term extracted from the “Glossaire de l’énergie nucléaire” and reproduced with permission of the Organisation for Economic Co-operation and Development.

French

Domaine(s)
  • Instruments scientifiques
DEF

Instrument de mesure dont les constantes peuvent être déterminées par des mesures ne portant que sur les grandeurs fondamentales.

OBS

Un appareil absolu donne une mesure absolue, par opposition à une mesure relative que l'on obtiendrait par simple comparaison.

Spanish

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Record 2 - external organization data 2005-07-15

English

Subject field(s)
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
CONT

An incident gamma ray reacts with an electron in an atomic orbit. The gamma photon gives all of its energy to the orbiting electron and ceases to exist. The electron is ejected from the atom and behaves like a beta particle. The ejected electron is called a photoelectron.

French

Domaine(s)
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Un rayon gamma incident heurte un électron sur une orbite atomique, il lui cède toute son énergie et cesse d'exister. L'électron est éjecté de l'atome et se comporte comme une particule bêta, on appelle cet électron éjecté photoélectron.

Spanish

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