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The use radioactive tracers in the study of solid transport in water streams; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau

Abstract

The Laboratoire National d'Hydraulique which has been studying, during the last few years in conjunction with the Centre d'Etudes Nucleaires at Saclay, the development of apparatus and of methods of investigation of sediment transport by radioactive tracer techniques, is at the moment trying to perfect a genuinely quantitative method of investigation. Two experiments have recently been carried out in rivers, the first designed to investigate the transport of pebbles in the river Rhone, the other to investigate the movement of sands in the Niger. This second experiment has been supported by parallel experiments carried out on a reduced scale model of the Niger built at the laboratories of Chatou: in this experiment are used the radiation from {sup 56}Mn and {sup 24}Na obtained by direct activation of the crushed apricot store which represents, in the scale model, the natural sediment on the bed of the Niger. The combined efforts of the laboratories of Chatou and of the Centre d'Etudes Nucleaires at Saclay are at the moment directed to the application of radioactive tracers to studies on the scale models with the double aim: a) of having a single investigational method for the actual experiment and for the model making it  More>>
Authors:
Courtois, G; [1]  Jaffry, P; Heuzel, M [2] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
  2. Laboratoire National d'Hydraulique de Chatou, 78 (France)
Publication Date:
Jul 01, 1960
Product Type:
Technical Report
Report Number:
CEA-R-1788
Resource Relation:
Other Information: 9 refs
Subject:
54 ENVIRONMENTAL SCIENCES; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ALLUVIAL DEPOSITS; FIELD TESTS; GAMMA DETECTION; LABELLING; MANGANESE 56; NIGER RIVER; RADIONUCLIDE MIGRATION; RHONE RIVER; SAND; SCALE MODELS; SEDIMENTS; SODIUM 24; SOLIDS FLOW; TANTALUM 182; TRACER TECHNIQUES; WATER CURRENTS
OSTI ID:
20967979
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1788116764
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
35 pages
Announcement Date:
Dec 29, 2007

Citation Formats

Courtois, G, Jaffry, P, and Heuzel, M. The use radioactive tracers in the study of solid transport in water streams; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau. France: N. p., 1960. Web.
Courtois, G, Jaffry, P, & Heuzel, M. The use radioactive tracers in the study of solid transport in water streams; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau. France.
Courtois, G, Jaffry, P, and Heuzel, M. 1960. "The use radioactive tracers in the study of solid transport in water streams; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau." France.
@misc{etde_20967979,
title = {The use radioactive tracers in the study of solid transport in water streams; Emploi de traceurs radioactifs pour l'etude du transport solide dans les cours d'eau}
author = {Courtois, G, Jaffry, P, and Heuzel, M}
abstractNote = {The Laboratoire National d'Hydraulique which has been studying, during the last few years in conjunction with the Centre d'Etudes Nucleaires at Saclay, the development of apparatus and of methods of investigation of sediment transport by radioactive tracer techniques, is at the moment trying to perfect a genuinely quantitative method of investigation. Two experiments have recently been carried out in rivers, the first designed to investigate the transport of pebbles in the river Rhone, the other to investigate the movement of sands in the Niger. This second experiment has been supported by parallel experiments carried out on a reduced scale model of the Niger built at the laboratories of Chatou: in this experiment are used the radiation from {sup 56}Mn and {sup 24}Na obtained by direct activation of the crushed apricot store which represents, in the scale model, the natural sediment on the bed of the Niger. The combined efforts of the laboratories of Chatou and of the Centre d'Etudes Nucleaires at Saclay are at the moment directed to the application of radioactive tracers to studies on the scale models with the double aim: a) of having a single investigational method for the actual experiment and for the model making it possible to control the accuracy of the model in the preliminary stage of calibrating this model; b) of making the most of the possibilities of observation and of direct measurement offered by the scale models for studying the possibility of improving the tracer method, in particular with respect to the collecting of quantitative data. (author) [French] La Laboratoire National d'Hydraulique qui, depuis quelques annees a developpe, en collaboration avec le Centre d'Etudes Nucleaires de Saclay, les appareillages et les techniques d'etudes des mouvements de sediments par la methode des traceurs radioactifs, s'efforce actuellement de mettre au point un moyen d'investigation veritablement quantitatif. Deux experiences ont ete effectuees recemment en riviere, la premiere a ete consacree a l'etude du charriage des galets dans le Rhone, l'autre a l'etude des transports de sables dans le Niger. Cette derniere experience a ete doublee d'experiences identiques, effectuees sur le modele reduit du fleuve Niger exploite par le Laboratoire de Chatou: dans ces experiences, on utilise le rayonnement du {sup 56}Mn et du {sup 24}Na obtenu par activation directe du noyau d'abricot concasse representant sur le modele reduit le sediment naturel du lit du Niger. Les efforts conjugues du Laboratoire de Chatou et du Centre d'Etudes Nucleaires de Saclay portent actuellement sur l'application des traceurs radioactifs aux etudes sur modeles reduits, dans le double but: a) de disposer d'un meme moyen d'investigation en nature et sur modele reduit pour controler la fidelite du modele, dans la phase des essais d'etalonnage; b) de profiter des facilites d'observation et mesures directes offertes par les modeles reduits pour etudier les possibilites d'amelioration de la methode des traceurs, en particulier en ce qui concerne l'obtention de renseignements quantitatifs. (auteur)}
place = {France}
year = {1960}
month = {Jul}
}