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DIRECT TRANSMISSION METHOD [1 record]
Record 1 - external organization data 2010-02-19
Record 1, English
Record 1, Subject field(s)
- Electromagnetic Radiation
- Radiological Physics (Theory and Application)
- Compartment - Canadian Nuclear Safety Commission
Record 1, Main entry term, English
- direct transmission method
1, record 1, English, direct%20transmission%20method
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, 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 1, English, - direct%20transmission%20method
Record 1, French
Record 1, Domaine(s)
- Rayonnements électromagnétiques
- Physique radiologique et applications
- Tiroir - Commission canadienne de sûreté nucléaire
Record 1, Main entry term, French
- méthode de transmission directe
1, record 1, French, m%C3%A9thode%20de%20transmission%20directe
feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, 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 1, French, - m%C3%A9thode%20de%20transmission%20directe
Record 1, Spanish
Record 1, Textual support, Spanish
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