TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
COUCHE DEMI-ATTENUATION [3 records]
Record 1 - internal organization data 2016-11-30
Record 1, English
Record 1, Subject field(s)
- Chemistry
- Nuclear Physics
- Radiological Physics (Theory and Application)
- CBRNE Weapons
Record 1, Main entry term, English
- half-value thickness
1, record 1, English, half%2Dvalue%20thickness
correct, standardized
Record 1, Abbreviations, English
- HVT 2, record 1, English, HVT
correct
Record 1, Synonyms, English
- half-value layer 3, record 1, English, half%2Dvalue%20layer
correct, standardized
- HVL 4, record 1, English, HVL
correct
- HVL 4, record 1, English, HVL
- half-thickness 5, record 1, English, half%2Dthickness
correct
- half thickness 6, record 1, English, half%20thickness
correct, NATO, standardized
- half-value depth 7, record 1, English, half%2Dvalue%20depth
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The thickness of a specified substance which, when introduced into the path of a given beam of radiation, reduces the value of a [specified radiation] quantity by one-half. 8, record 1, English, - half%2Dvalue%20thickness
Record number: 1, Textual support number: 1 OBS
half-value layer; half-value thickness: terms standardized by ISO in 1997. 9, record 1, English, - half%2Dvalue%20thickness
Record number: 1, Textual support number: 2 OBS
half thickness: term standardized by NATO. 9, record 1, English, - half%2Dvalue%20thickness
Record number: 1, Textual support number: 3 OBS
half-value thickness; HVT; half-value layer; HVL; half-value depth; HDV: terms and abbreviations extracted from the “Glossaire de l’énergie nucléaire” and reproduced with permission of the Organisation for Economic Co-operation and Development. 9, record 1, English, - half%2Dvalue%20thickness
Record 1, French
Record 1, Domaine(s)
- Chimie
- Physique nucléaire
- Physique radiologique et applications
- Armes CBRNE
Record 1, Main entry term, French
- couche de demi-atténuation
1, record 1, French, couche%20de%20demi%2Datt%C3%A9nuation
correct, feminine noun, standardized
Record 1, Abbreviations, French
- CDA 2, record 1, French, CDA
correct, feminine noun
Record 1, Synonyms, French
- épaisseur de demi-atténuation 3, record 1, French, %C3%A9paisseur%20de%20demi%2Datt%C3%A9nuation
correct, feminine noun
- épaisseur de demi-absorption 4, record 1, French, %C3%A9paisseur%20de%20demi%2Dabsorption
correct, feminine noun
- demi-épaisseur 5, record 1, French, demi%2D%C3%A9paisseur
correct, feminine noun, NATO, standardized
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Épaisseur d’une substance déterminée qui, interposée sur le trajet d’un faisceau de rayonnement donné, réduit de moitié la valeur d’une grandeur de rayonnement. 6, record 1, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 1, Textual support number: 1 OBS
couche de demi-atténuation : terme et définition normalisés par l'ISO en 1997. 7, record 1, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 1, Textual support number: 2 OBS
demi-épaisseur : terme normalisé par l’OTAN. 7, record 1, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 1, Textual support number: 3 OBS
couche de demi-atténuation; CDA : terme et abréviation extraits du «Glossaire de l'énergie nucléaire» et reproduits avec l'autorisation de l'Organisation de coopération et de développement économiques. 7, record 1, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 1, Textual support number: 4 OBS
couche de demi-atténuation; CDA; épaisseur de demi-atténuation : termes et sigle publiés au Journal officiel de la République française le 22 septembre 2000. 7, record 1, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
- Física nuclear
- Física radiológica (Teoría y aplicación)
- Armas QBRNE
Record 1, Main entry term, Spanish
- grosor de hemi-absorción
1, record 1, Spanish, grosor%20de%20hemi%2Dabsorci%C3%B3n
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- espesor medio 2, record 1, Spanish, espesor%20medio
correct, masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Espesor de material absorbente necesario para reducir a la mitad la intensidad de la radiación que lo atraviesa. 2, record 1, Spanish, - grosor%20de%20hemi%2Dabsorci%C3%B3n
Record 2 - external organization data 2015-05-04
Record 2, English
Record 2, Subject field(s)
- Compartment - Canadian Nuclear Safety Commission
- Atomic Physics
- Radiation Protection
- Medical Imaging
Record 2, Main entry term, English
- half-value layer
1, record 2, English, half%2Dvalue%20layer
correct, standardized
Record 2, Abbreviations, English
- HVL 2, record 2, English, HVL
correct
Record 2, Synonyms, English
- half-value thickness 3, record 2, English, half%2Dvalue%20thickness
correct
- HVT 4, record 2, English, HVT
correct
- HVT 4, record 2, English, HVT
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The thickness of a material [uranium, tungsten, lead, etc.] which reduces the amount of radiation to one half of its initial intensity. 5, record 2, English, - half%2Dvalue%20layer
Record number: 2, Textual support number: 1 OBS
The thickness of the half-value layer will depend on the material and the energy of the gamma radiation. 5, record 2, English, - half%2Dvalue%20layer
Record number: 2, Textual support number: 2 OBS
It is sometimes expressed in terms of mass per unit area. 3, record 2, English, - half%2Dvalue%20layer
Record number: 2, Textual support number: 3 OBS
half-value layer: term standardized by ISO. 6, record 2, English, - half%2Dvalue%20layer
Record 2, French
Record 2, Domaine(s)
- Tiroir - Commission canadienne de sûreté nucléaire
- Physique atomique
- Radioprotection
- Imagerie médicale
Record 2, Main entry term, French
- couche de demi-atténuation
1, record 2, French, couche%20de%20demi%2Datt%C3%A9nuation
correct, feminine noun, standardized
Record 2, Abbreviations, French
- CDA 2, record 2, French, CDA
correct, feminine noun
- C.D.A. 3, record 2, French, C%2ED%2EA%2E
correct, feminine noun
Record 2, Synonyms, French
- épaisseur de demi-atténuation 4, record 2, French, %C3%A9paisseur%20de%20demi%2Datt%C3%A9nuation
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Épaisseur d’un matériau [uranium, tungstène, plomb, etc.] qui réduit l’intensité de rayonnement à la moitié de son intensité originale. 5, record 2, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 2, Textual support number: 1 OBS
L'épaisseur de la couche de demi-atténuation dépend du type de matériau et de l'énergie du rayonnement gamma. 5, record 2, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 2, Textual support number: 2 OBS
Elle est quelquefois exprimée en termes de masse par unité de surface. 6, record 2, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record number: 2, Textual support number: 3 OBS
couche de demi-atténuation : terme normalisé par l'ISO. 7, record 2, French, - couche%20de%20demi%2Datt%C3%A9nuation
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - external organization data 2011-11-03
Record 3, English
Record 3, Subject field(s)
- Atomic Physics
- Radiological Physics (Theory and Application)
- Radiation Protection
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- penetrating radiation
1, record 3, English, penetrating%20radiation
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- hard radiation 2, record 3, English, hard%20radiation
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Ionizing radiation that can penetrate right through the body, or through a substantial part of the body. 3, record 3, English, - penetrating%20radiation
Record number: 3, Textual support number: 1 CONT
Hard radiation [is the] ionizing radiation of short wavelength and high penetration. 4, record 3, English, - penetrating%20radiation
Record 3, French
Record 3, Domaine(s)
- Physique atomique
- Physique radiologique et applications
- Radioprotection
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- rayonnement pénétrant
1, record 3, French, rayonnement%20p%C3%A9n%C3%A9trant
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- rayonnement dur 2, record 3, French, rayonnement%20dur
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Terme qualificatif caractérisant l'aptitude d’un rayonnement à traverser la matière; plus la couche de demi-atténuation est grande, plus le rayonnement est dur(par exemple : rayons X émis par un accélérateur linéaire ou un bêtatron). 3, record 3, French, - rayonnement%20p%C3%A9n%C3%A9trant
Record number: 3, Textual support number: 1 CONT
L’exposition externe. Les rayonnements qui atteignent l’organisme en venant de l’extérieur peuvent être plus ou moins pénétrants. Ainsi les particules chargées d’électricité comme les électrons (ß) ou les particules [alpha] sur la trajectoire desquelles se forme un grand nombre d’ionisations sont, dans les tissus, freinées et arrêtées sur de courtes distances. Les particules [alpha] sont entièrement absorbées dans la partie cornée de la peau et les rayonnements ß n’atteignent, en général, que la couche basale de l’épiderme (parfois le cristallin lorsqu’il n’est pas protégé). Ce sont des rayonnements non (ou peu) pénétrants. 4, record 3, French, - rayonnement%20p%C3%A9n%C3%A9trant
Record number: 3, Textual support number: 2 CONT
Contrairement aux rayonnements formés de particules chargées (ß, [alpha]), les rayonnements [gamma] et les neutrons sont des rayonnements pénétrants : ils font naître, de façon dispersée certes mais à l’intérieur des différents tissus ou organes internes, des particules chargées secondaires responsables des ionisations. 4, record 3, French, - rayonnement%20p%C3%A9n%C3%A9trant
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física atómica
- Física radiológica (Teoría y aplicación)
- Protección contra la radiación
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 3, Main entry term, Spanish
- radiación penetrante
1, record 3, Spanish, radiaci%C3%B3n%20penetrante
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- radiación dura 2, record 3, Spanish, radiaci%C3%B3n%20dura
correct, feminine noun
Record 3, Textual support, Spanish
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