TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ELECTRON EMITTER [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-11-14

English

Subject field(s)
  • Scientific Instruments
  • Analytical Chemistry
OBS

A type of ionization detector that responds to the permanent gases. It consists of a small ionization chamber in which the carrier gas and solute are irradiated with electron from a β-ray emitter while a potential is applied across the cell. When solutes enter the chamber there is a current change arising from the change in total cross-section for ionization.

OBS

The carrier gas most commonly used is hydrogen but nitrogen and helium are also employed.

French

Domaine(s)
  • Instruments scientifiques
  • Chimie analytique

Spanish

Save record 1

Record 2 1999-03-22

English

Subject field(s)
  • Electrical Convertors
  • Energy Transformation
DEF

A device in which heat energy is directly converted to electric energy; it has two electrodes, one of which is raised to a sufficiently high temperature to become a thermionic electronic emitter, while the other, serving as an electron collector, is operated at a significantly low temperature.

French

Domaine(s)
  • Convertisseurs (Électrotechnique)
  • Transformation de l'énergie
CONT

Un convertisseur thermo-ionique comprend deux électrodes, l'émetteur porté à haute température [...] et le collecteur [...]. Les électrons libérés par l'émetteur migrent vers le collecteur où ils abandonnent une fraction de leur énergie, la fraction restante leur permettant de circuler dans la charge extérieure.

Key term(s)
  • cellule thermoionique

Spanish

Save record 2

Record 3 1998-12-02

English

Subject field(s)
  • Electronic Circuits Technology
OBS

emitter follower : A transistor circuit using a grounded collector... to provide operation similar to an electron tube cathode follower.

French

Domaine(s)
  • Technologie des circuits électroniques
OBS

Voir «émetteur suiveur».

Spanish

Save record 3

Record 4 1986-02-07

English

Subject field(s)
  • Semiconductors (Electronics)
DEF

The region between the emitter and collector of a transistor which receives minority carriers injected from the emitter. It is the element which corresponds to the control grid of an electron tube.

French

Domaine(s)
  • Semi-conducteurs (Électronique)
DEF

Électrode d'un transistor comprise entre l'émetteur et le collecteur, dans laquelle transitent des porteurs minoritaires. Son épaisseur W varie de 50 à 2 [microns]

Spanish

Save record 4

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