TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
RETRODIFFUSION DIRECTE [7 records]
Record 1 - internal organization data 2012-04-24
Record 1, English
Record 1, Subject field(s)
- Radio Waves
Record 1, Main entry term, English
- short distance back scatter
1, record 1, English, short%20distance%20back%20scatter
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- direct backscatter 2, record 1, English, direct%20backscatter
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
short distance back scatter: term officially approved by the Electronics and Telecommunications Terminology Committee. 3, record 1, English, - short%20distance%20back%20scatter
Record 1, Key term(s)
- direct back scatter
- short distance backscatter
Record 1, French
Record 1, Domaine(s)
- Ondes radioélectriques
Record 1, Main entry term, French
- rétrodiffusion directe
1, record 1, French, r%C3%A9trodiffusion%20directe
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
rétrodiffusion directe : terme uniformisé par le Comité d’uniformisation des termes de l'électronique et des télécommunications(CUTEL). 2, record 1, French, - r%C3%A9trodiffusion%20directe
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ondas radioeléctricas
Record 1, Main entry term, Spanish
- retrodifusión directa
1, record 1, Spanish, retrodifusi%C3%B3n%20directa
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- dispersión de retorno directa 1, record 1, Spanish, dispersi%C3%B3n%20de%20retorno%20directa
correct, feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Retrodifusión en la que la señal se recibe directamente desde la región de difusión. 1, record 1, Spanish, - retrodifusi%C3%B3n%20directa
Record 2 - external organization data 2010-02-19
Record 2, English
Record 2, Subject field(s)
- Electromagnetic Radiation
- Radiological Physics (Theory and Application)
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- direct transmission method
1, record 2, English, direct%20transmission%20method
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
There are two basic methods of measuring material with portable gauges, backscatter and direct transmission. "Direct transmission" is considered the more precise of the two, as it offers less error in measuring composition and compensates for surface roughness. To measure soil density, for example, the source is placed in a tube and inserted beneath the surface through a punched access hole. Radiation is then transmitted from the source to a detector on the base of the gauge. The density of the soil is determined by the radiation level at the detector. 1, record 2, English, - direct%20transmission%20method
Record 2, French
Record 2, Domaine(s)
- Rayonnements électromagnétiques
- Physique radiologique et applications
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- méthode de transmission directe
1, record 2, French, m%C3%A9thode%20de%20transmission%20directe
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Il existe deux méthodes fondamentales pour mesurer le matériau à l'aide de jauges portatives : la transmission directe et la rétrodiffusion. On considère la «transmission directe» comme la plus précise des deux puisqu'elle comporte moins d’erreurs de mesure de la composition et qu'elle compense pour les inégalités de surface. Si l'on désire mesurer la densité du sol, par exemple, la source est placée dans un tube et insérée sous la surface du sol par un trou d’accès. Les rayonnements passent ensuite de la source à un détecteur placé à la base de la jauge et la densité du sol est déterminée par le niveau de rayonnement indiqué par le détecteur. 1, record 2, French, - m%C3%A9thode%20de%20transmission%20directe
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - external organization data 2007-11-08
Record 3, English
Record 3, Subject field(s)
- Scientific Measurements and Analyses
- Radiological Physics (Theory and Application)
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- density measurement 1, record 3, English, density%20measurement
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
When [backscatter method is] used for density measurements, it is less accurate than direct transmission due to the large scattering angle and shallow depth of measurement. 1, record 3, English, - density%20measurement
Record 3, French
Record 3, Domaine(s)
- Mesures et analyse (Sciences)
- Physique radiologique et applications
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- mesure de la masse volumique
1, record 3, French, mesure%20de%20la%20masse%20volumique
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Lorsque [la rétrodiffusion] est employée pour des mesures de la masse volumique, elle est moins précise que la transmission directe en raison du fait que l'angle de diffusion est grand et à cause de la faible profondeur à laquelle sont effectuées les mesures. 1, record 3, French, - mesure%20de%20la%20masse%20volumique
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - external organization data 2007-11-08
Record 4, English
Record 4, Subject field(s)
- Radiological Physics (Theory and Application)
- Compartment - Canadian Nuclear Safety Commission
Record 4, Main entry term, English
- scattering angle 1, record 4, English, scattering%20angle
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
When [backscatter method is] used for density measurements, it is less accurate than direct transmission due to the large scattering angle and shallow depth of measurement. 1, record 4, English, - scattering%20angle
Record 4, French
Record 4, Domaine(s)
- Physique radiologique et applications
- Tiroir - Commission canadienne de sûreté nucléaire
Record 4, Main entry term, French
- angle de diffusion
1, record 4, French, angle%20de%20diffusion
masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Lorsque [la rétrodiffusion] est employée pour des mesures de la masse volumique, elle est moins précise que la transmission directe en raison du fait que l'angle de diffusion est grand et à cause de la faible profondeur à laquelle sont effectuées les mesures. 1, record 4, French, - angle%20de%20diffusion
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - external organization data 2003-07-02
Record 5, English
Record 5, Subject field(s)
- Electromagnetic Radiation
- Radiological Physics (Theory and Application)
- Compartment - Canadian Nuclear Safety Commission
Record 5, Main entry term, English
- backscatter method
1, record 5, English, backscatter%20method
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
There are two basic methods of measuring material with portable gauges, backscatter and direct transmission. ... The "backscatter method" eliminates the need for an access hole by allowing both the source and detector to remain on the surface. Radiation is directed beneath the surface, and some radiation is reflected, or "scattered" back to the gauge detector by the surface material. This method ... is ... insensitive to density variations beyond a depth of 2 to 3 inches. However, the backscatter method is quicker than the direct transmission, and is useful when measuring uniform material such as asphalt paving. 1, record 5, English, - backscatter%20method
Record 5, French
Record 5, Domaine(s)
- Rayonnements électromagnétiques
- Physique radiologique et applications
- Tiroir - Commission canadienne de sûreté nucléaire
Record 5, Main entry term, French
- méthode de rétrodiffusion
1, record 5, French, m%C3%A9thode%20de%20r%C3%A9trodiffusion
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Il existe deux méthodes fondamentales pour mesurer le matériau à l'aide de jauges portatives : la transmission directe et la rétrodiffusion. [...] La méthode de «rétrodiffusion» élimine l'utilisation d’un trou d’accès puisque la source et le détecteur demeurent tous deux en surface. Les rayonnements sont dirigés sous la surface et une certaine partie des rayonnements est réfléchie ou «diffusée» vers le détecteur de la jauge par le matériau de surface. Cette méthode [...] n’ est pas sensible aux variations de densité, dès qu'on a dépassé une profondeur de 5 à 7, 5 cm(2 à 3 pouces). Toutefois, la méthode de rétrodiffusion est plus rapide et plus efficace que la transmission directe; elle peut se révéler utile lorsque l'on mesure un matériau uniforme comme un pavage d’asphalte. 1, record 5, French, - m%C3%A9thode%20de%20r%C3%A9trodiffusion
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - external organization data 2001-02-26
Record 6, English
Record 6, Subject field(s)
- Scientific Research Methods
- Compartment - Canadian Nuclear Safety Commission
Record 6, Main entry term, English
- x-ray fluorescence analysis
1, record 6, English, x%2Dray%20fluorescence%20analysis
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
X-ray Fluorescence Analysis Simulation simulates the qualitative and quantitative X-ray fluorescence (XRF) analysis of an unknown containing 3 to 5 elements randomly selected from a list of 24 elements. The percentages in the quantitative analysis do not total 100% as there are always inert ingredients, thus all components must be determined. 1, record 6, English, - x%2Dray%20fluorescence%20analysis
Record 6, French
Record 6, Domaine(s)
- Méthodes de recherche scientifique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 6, Main entry term, French
- analyse par fluorescence X
1, record 6, French, analyse%20par%20fluorescence%20X
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Méthodes nucléaires d’analyse : a) Analyse par activation : i) neutronique ii) particule chargée b) Analyse par observation directe de réactions nucléaires : applications au dosage d’éléments légers et à la détermination de profils c) Analyse par rétrodiffusion de particules(R. B. S.) d) Analyse par fluorescence X : PIXE-SXRF e) Localisation à une ou deux dimensions. Applications à l'imagerie nucléaire. 2, record 6, French, - analyse%20par%20fluorescence%20X
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - external organization data 1998-01-12
Record 7, English
Record 7, Subject field(s)
- Radiological Physics (Theory and Application)
- Scientific Instruments
- Compartment - Canadian Nuclear Safety Commission
Record 7, Main entry term, English
- portable gauge
1, record 7, English, portable%20gauge
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- portable nuclear gauge 2, record 7, English, portable%20nuclear%20gauge
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
Portable gauges are used in industries such as agriculture, construction, and civil engineering to measure things like the moisture in soil, and the density of asphalt in a paving mix. There are two basic methods of measuring material with portable gauges, backscatter and direct transmission. ... To measure soil density, for example, the source is placed in a tube and inserted beneath the surface through a punched access hole. Radiation is then transmitted from the source to a detector on the base of the gauge. 3, record 7, English, - portable%20gauge
Record 7, Key term(s)
- portable gage
- portable nuclear gage
Record 7, French
Record 7, Domaine(s)
- Physique radiologique et applications
- Instruments scientifiques
- Tiroir - Commission canadienne de sûreté nucléaire
Record 7, Main entry term, French
- jauge nucléaire portative
1, record 7, French, jauge%20nucl%C3%A9aire%20portative
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- jauge portative 2, record 7, French, jauge%20portative
feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Les jauges portatives sont utilisées dans l'industrie de l'agriculture, de la construction et du génie civil afin de mesurer, par exemple, l'humidité du sol et la densité de l'asphalte dans un mélange de pavage. Il existe deux méthodes fondamentales pour mesurer le matériau à l'aide de jauge portative : la transmission directe et la rétrodiffusion. [...] Si l'on désire mesurer la densité du sol, par exemple, la source est placée dans un tube et insérée sous la surface du sol par un trou d’accès. Les rayonnements passent ensuite de la source à un détecteur placé à la base de la jauge et la densité du sol est déterminée par le niveau de rayonnement indiqué par le détecteur. 3, record 7, French, - jauge%20nucl%C3%A9aire%20portative
Record 7, Spanish
Record 7, Textual support, Spanish
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