TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
LUMINESCENCE CENTER [1 record]
Record 1 - internal organization data 2009-10-15
Record 1, English
Record 1, Subject field(s)
- Photoelectricity and Electron Optics
- Radiological Physics (Theory and Application)
Record 1, Main entry term, English
- luminescence center
1, record 1, English, luminescence%20center
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In liquids and solids (as well as molecular gases), the radiation is emitted in bands due to transitions between closely spaced levels. Except in a few special cases, the radiation is emitted by isolated levels associated with activators, usually present in very small concentrations in a matrix or host material. These luminescence centers can be the activator ion itself, or a disturbance of the lattice caused by the activator ion. They correspond to the chromophores of chemists. In the "pure" luminescent materials, such as platinocyanates and uranyl compounds, the centers are ions with unfilled inner electron shells. 1, record 1, English, - luminescence%20center
Record 1, Key term(s)
- luminescence centre
Record 1, French
Record 1, Domaine(s)
- Photo-électricité et optique électronique
- Physique radiologique et applications
Record 1, Main entry term, French
- centre de luminescence
1, record 1, French, centre%20de%20luminescence
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Lorsque des paires électron-trou sont créées, ces charges se retrouvent rapidement piégées sur ces niveaux localisés appelés centres de luminescence. 1, record 1, French, - centre%20de%20luminescence
Record number: 1, Textual support number: 1 OBS
Scintillateurs inorganiques. Dans ces scintillateurs, l'émission de lumière est généralement due à la présence d'un dopant en faible quantité (comme le thallium dans le Nal ou le Csl) qui induit dans le cristal des niveaux localisés à l'intérieur du gap [...] 1, record 1, French, - centre%20de%20luminescence
Record 1, Spanish
Record 1, Textual support, Spanish
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