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The Government of Canada’s terminology and linguistic data bank.
SPECTRE DIFFRACTION [2 records]
Record 1 - internal organization data 2003-10-31
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Astrophysics and Cosmography
Record 1, Main entry term, English
- green flash
1, record 1, English, green%20flash
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- green ray 1, record 1, English, green%20ray
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Predominantly green colouration of short duration, often in the form of a flash, seen at the extreme upper edge of a luminary (Sun, Moon, or even a planet) when disappearing below or appearing above the horizon. 2, record 1, English, - green%20flash
Record number: 1, Textual support number: 1 CONT
When the sun sets, sometimes the last bit of light from the disk itself is an emerald green. The same is true of the first bit of light from the rising sun. This phenomenon is known as the "green flash" or "green ray". It is not an optical illusion. The green flash is common and will be visible any time the sun is rises or sets on a "clear", "unobstructed", and "low" horizon. ... The explanation for the green flash is thus, 1) refraction separates the solar images by color; 2) at just the right instant, the red image has set, 3) the yellow image is absorbed; and 4) the blue image is scattered away. We are left with the upper limb of the green image. Because the green flash is primarily a refraction effect, it lasts longer and is easier to see from a mountain top than from sea level. 3, record 1, English, - green%20flash
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Astrophysique et cosmographie
Record 1, Main entry term, French
- rayon vert
1, record 1, French, rayon%20vert
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- éclat vert 2, record 1, French, %C3%A9clat%20vert
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Coloration à dominante verte et de courte durée, souvent sous forme d’un éclat bref, observée au moment ou l’extrême bord supérieur d’un astre (Soleil, Lune ou même une planète) disparaît derrière l’horizon ou apparaît au-dessus de l’horizon. 2, record 1, French, - rayon%20vert
Record number: 1, Textual support number: 1 CONT
Qu'est-ce que le rayon vert [...] juste avant le coucher du soleil, [...] ce fugace rayon vert émeraude [...] apparaît, et disparaît presque aussi soudainement, lorsque le bord supérieur du disque solaire effleure l'horizon juste avant de se coucher. Cette petite tache lumineuse dure à peine quelques secondes. Plus précisément, 1, 8 sec à l'équateur, 2, 5 sec à une latitude de 45 degrés. Ce phénomène de réfraction, qui ne se produit que lorsque l'atmosphère est extrêmement pure et qu'il y a très peu de particules pouvant créer de la diffraction ou dispersion, apparaît très rarement au lever ou au coucher du soleil. Comment cela se passe-t-il? La réfraction du Soleil par l'atmosphère crée un spectre vertical. Au fur et à mesure que le soleil descend sous l'horizon, les couleurs spectrales disparaissent une à une à commencer par le rouge, l'orangé, puis le jaune. Quand ces 3 couleurs sont disparues, quelques fois, à peine le temps d’un éclair, la seule couleur qui reste visible est le vert. 3, record 1, French, - rayon%20vert
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física de la atmósfera
- Astrofísica y cosmografía
Record 1, Main entry term, Spanish
- destello verde
1, record 1, Spanish, destello%20verde
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- rayo verde 2, record 1, Spanish, rayo%20verde
masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Coloración verdosa, breve, a veces como un destello, que se ve en el extremo superior del borde de un cuerpo luminoso celeste (el Sol, la Luna e incluso, a veces, un planeta) en el momento de desaparecer por debajo, o aparecer por encima, del horizonte. 1, record 1, Spanish, - destello%20verde
Record 2 - internal organization data 1992-09-16
Record 2, English
Record 2, Subject field(s)
- Optics
- Mineralogy
Record 2, Main entry term, English
- X-ray spectrum
1, record 2, English, X%2Dray%20spectrum
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The spectrum of X-rays emitted when a substance is bombarded with energetic particles or radiation. It consists of a "characteristic spectrum", resulting from specific electronic transitions within the atoms of the substance, superimposed on a "continuous spectrum" resulting from inelastic collisions of particles or incoherent scattering of the exciting radiation. 2, record 2, English, - X%2Dray%20spectrum
Record 2, French
Record 2, Domaine(s)
- Optique
- Minéralogie
Record 2, Main entry term, French
- spectre de diffraction des rayons X
1, record 2, French, spectre%20de%20diffraction%20des%20rayons%20X
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La "diffraction des rayons X" est(...) devenue un moyen fondamental pour identifier les minéraux(...) Dans le dispositif le plus courant, le minéral est broyé et disposé sur une lame de verre ou dans la petite cuvette d’un porte-échantillon. Le spectre de diffraction des rayons X est enregistré d’une part graphiquement et de l'autre, dans les appareils modernes, par comptage d’impulsions(...) 2, record 2, French, - spectre%20de%20diffraction%20des%20rayons%20X
Record 2, Spanish
Record 2, Textual support, Spanish
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