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Dating technique of samples rich in uranium by the series of the uranium by using the gamma spectrometry with low energy In this work, a dating technique by the series of the uranium using the gamma spectrometry with Flow energy ( Th/ 234 U, 234 U/ 238 U and 231 Pa/ 235 U activity ratios necessary to date a sample by the methods of radioactive imbalance in the families of the uranium ( 230 Th/ 234 U, and 231 Pa/ 235 U). Activity ratios and age measured by this technique are comparable to those obtained by means of the suitable alpha spectrometry for this kind of measures. The gamma  spectrometry with low destructive energy allowed, in this work, to date a sample rich in uranium, from the same spectrum, by 2 methods of radioactive imbalance ( 230 Th/ 234 U and 231 Pa/ 235 U). What will allow to avoid the radioactive pollution problem for laboratories which also handle the samples of weak activities

Technique de datation des échantillons riches en uranium par les séries de l'uranium en utilisant la spectrométrie gamma à basse énergie