TERMIUM Plus®
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FULL WIDTH HALF MAXIMUM [3 records]
Record 1 - internal organization data 2011-09-15
Record 1, English
Record 1, Subject field(s)
- Telecommunications
- Radio Transmission and Reception
Record 1, Main entry term, English
- half-power beamwidth
1, record 1, English, half%2Dpower%20beamwidth
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
For an antenna beam in any one dimension, the full width in angle between the directions at which the received or transmitted power falls to half of its maximum value. 2, record 1, English, - half%2Dpower%20beamwidth
Record 1, French
Record 1, Domaine(s)
- Télécommunications
- Émission et réception radio
Record 1, Main entry term, French
- ouverture à mi-puissance
1, record 1, French, ouverture%20%C3%A0%20mi%2Dpuissance
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1998-02-10
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- line width
1, record 2, English, line%20width
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
[In Mössbauer spectroscopy], the full width at half maximum peak-height. The natural linewidth is the theoretical value of the full width at half maximum of the nuclear transition, usually calculated from lifetime data. 1, record 2, English, - line%20width
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- largeur de raie
1, record 2, French, largeur%20de%20raie
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[En spectroscopie de Mössbauer], [...] largeur du pic à mi-hauteur. La largeur naturelle de la raie est la valeur théorique de la largeur globale à la moitié du maximum de la transition nucléaire; elle est généralement calculée à partir de données du temps de vie. 1, record 2, French, - largeur%20de%20raie
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1997-11-26
Record 3, English
Record 3, Subject field(s)
- Chemistry
Record 3, Main entry term, English
- self-absorption broadening
1, record 3, English, self%2Dabsorption%20broadening
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
Photons emitted in one region of a source may be partly absorbed by atoms at lower excitation levels in their passage through the plasma. Because of the fact that the absorption profile is of a similar shape to the emission profile, energy is preferentially absorbed from the central part of the emission line. Maximum absorption occurs at the centre of the line or central wavelength. The actual line profile of the transmitted radiation is changed as a result of the lowering of the maximum intensity. This is the cause of the increase in the apparent full width at half maximum. This is termed self-absorption broadening. 1, record 3, English, - self%2Dabsorption%20broadening
Record 3, French
Record 3, Domaine(s)
- Chimie
Record 3, Main entry term, French
- élargissement par autoabsorption
1, record 3, French, %C3%A9largissement%20par%20autoabsorption
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Lors de leur passage à travers le plasma, des photons émis dans une région d'une source peuvent être partiellement absorbés par des atomes dans des niveaux d'excitation moins élevés. Le profil d'absorption étant d'une forme semblable à celle du profil d'émission, l'énergie est préférentiellement absorbée à partir de la partie centrale de la raie d'émission. L'absorption maximale se produit au centre de la raie ou à la longueur d'onde centrale. Le profil réel de la raie du rayonnement transmis change par suite de l'abaissement du maximum d'intensité. Ceci est la cause de l'augmentation apparente de la pleine largeur à la mi-hauteur du maximum. Ce phénomène se nomme élargissement par autoabsorption. 1, record 3, French, - %C3%A9largissement%20par%20autoabsorption
Record 3, Spanish
Record 3, Textual support, Spanish
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