TERMIUM Plus®

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K EDGE DENSITOMETER [1 record]

Record 1 2010-11-26

English

Subject field(s)
  • Measuring Instruments
  • Scientific Measurements and Analyses
  • Atomic Physics
CONT

K-edge densitometry: A technique for measuring the U [uranium] or Pu [plutonium] concentration in solutions by determining the ratio of the transmission of photons whose energies closely bracket the K-electron absorption edge of the U or Pu. Hybrid instruments combining K-edge densitometry and X ray fluorescence analysis are used for determining U and Pu concentrations in mixed solutions, including highly radioactive spent fuel solutions.

French

Domaine(s)
  • Appareils de mesure
  • Mesures et analyse (Sciences)
  • Physique atomique
OBS

[…] les EUTU [uranium et éléments transuraniens] sont un cas favorable d’application de l’absorption puisque celle-ci croît avec le numéro atomique Z. [L’appareillage en question] est développé suivant ce principe. La source de rayonnement est un tube X alimenté à 150 kV [kilovolts] et 15 mA [milliampères]; la mesure est faite au moyen d’un détecteur au germanium intrinsèque à haute résolution. Les discontinuités K des actinides se situent dans la zone des 100 keV [kiloélectronvolts].

Spanish

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