TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Neutron reflectometry is a laboratory technique, similar to the often complementary techniques of X-ray reflectivity and ellipsometry. The technique involves shining a highly collimated beam of neutrons onto an extremely flat surface and examining the intensity of reflected radiation as a function of angle.  2, fiche 1, Anglais, - neutron%20reflectometry

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Il est important de caractériser la structure atomique et magnétique [des] couches [magnétiques]. La réflectométrie neutronique est un outil particulièrement puissant : en effet la polarisation d'un faisceau de neutrons polarisés va être modifiée par la réflexion par les couches magnétiques. Un analyseur de la polarisation après réflexion va permettre de déterminer les courbes de réflectivité pour des états de spin parallèles ou antiparallèles.  1, fiche 1, Français, - r%C3%A9flectom%C3%A9trie%20neutronique

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

... volume of water relative to the total volume of soil.  3, fiche 2, Anglais, - volumic%20water%20content

Record number: 2, Textual support number: 1 CONT

Another way to express the moisture content of a soil is the volumetric water content... The use of volumetric water content rather than wetness is often more convenient because it is more directly adaptable to the computation of fluxes and water quantities added or subtracted to a soil. Also, volumetric water content represents the depth ratio of soil water, i. e., the depth of water per depth of soil. In Narrabri the volumetric water content was tested by two different methods, these being the Neutron Probe and by Time Domain Reflectometry(TDR).  3, fiche 2, Anglais, - volumic%20water%20content

Record number: 2, Textual support number: 2 CONT

Neutronometry: counting of the neutrons thermalized by inelastic shocks on the nuclei of hydrogen atoms using a ’neutron probe’. The volumic water content is determined on the whole soil profile. The equipment is expensive, calibration is delicate, and its use is subject to constraints (radioprotection). However, it can provide rapid and sequential measures at the same place without disturbing the soil.  1, fiche 2, Anglais, - volumic%20water%20content

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

[...] rapport, [exprimé en pourcentage,] du volume d'eau contenu dans le sol sur le volume apparent de terre (terre + espace poreux).  1, fiche 2, Français, - humidit%C3%A9%20volumique%20du%20sol

Fiche 2,  Justifications,  Espagnol