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Heavy water reactors physics; Physique des reacteurs a eau lourde

Abstract

An important research programme on heavy water reactor physics has been carried out in France for quite a few years. The decision to build the EL 4 prototype and so to choose the heavy water gas cooled type has renewed the interest in this programme and at the same time given to it a more specific orientation A summary of the results gained in this field is presented in this paper. In the first part are described the experimental investigations, most of them were carried out in the criticality facility AQUILON II. The experiments are grouped in four parts - Systematic studies of lattices Buckling measurements. - Specific studies of gas-cooled lattices. - Fine structure, spectral indices measurements etc... - Measurements on lattices or samples containing Uranium of various enrichment or Plutonium. The second part is devoted to a summary of the theoretical studies. The whole results have allowed an improvement of the calculation methods, have led to a better understanding of the neutron balance in lattices, and have permitted the establishment of a set of formula to predict not only the clean fuel conditions but also the evolution of the nuclear properties with irradiation. Some specific studies on power  More>>
Authors:
Girard, Y; Lourme, P; Naudet, R [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1964
Product Type:
Technical Report
Report Number:
CEA-R-2659
Resource Relation:
Other Information: 22 refs
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BUCKLING; EL-4 REACTOR; HEAVY WATER COOLED REACTORS; REACTOR LATTICES; REACTOR PHYSICS
OSTI ID:
20668353
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR05R2659107054
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
20 pages
Announcement Date:
Dec 14, 2005

Citation Formats

Girard, Y, Lourme, P, and Naudet, R. Heavy water reactors physics; Physique des reacteurs a eau lourde. France: N. p., 1964. Web.
Girard, Y, Lourme, P, & Naudet, R. Heavy water reactors physics; Physique des reacteurs a eau lourde. France.
Girard, Y, Lourme, P, and Naudet, R. 1964. "Heavy water reactors physics; Physique des reacteurs a eau lourde." France.
@misc{etde_20668353,
title = {Heavy water reactors physics; Physique des reacteurs a eau lourde}
author = {Girard, Y, Lourme, P, and Naudet, R}
abstractNote = {An important research programme on heavy water reactor physics has been carried out in France for quite a few years. The decision to build the EL 4 prototype and so to choose the heavy water gas cooled type has renewed the interest in this programme and at the same time given to it a more specific orientation A summary of the results gained in this field is presented in this paper. In the first part are described the experimental investigations, most of them were carried out in the criticality facility AQUILON II. The experiments are grouped in four parts - Systematic studies of lattices Buckling measurements. - Specific studies of gas-cooled lattices. - Fine structure, spectral indices measurements etc... - Measurements on lattices or samples containing Uranium of various enrichment or Plutonium. The second part is devoted to a summary of the theoretical studies. The whole results have allowed an improvement of the calculation methods, have led to a better understanding of the neutron balance in lattices, and have permitted the establishment of a set of formula to predict not only the clean fuel conditions but also the evolution of the nuclear properties with irradiation. Some specific studies on power reactor are quoted. (authors) [French] Un important programme d'etudes sur la physique des reacteurs a eau lourde est mene en France depuis assez longtemps. La decision de construire le prototype EL 4 et de s'engager ainsi dans la filiere des reacteurs a eau lourde refroidis par gaz a redonne un nouvel interet a ce programme et l'a en meme temps oriente dans une direction plus particuliere. La presente communication, rassemble les resultats des etudes faites dans ce domaine depuis la derniere conference de Geneve. Dans la premiere partie on decrit les etudes experimentales dont la plupart ont ete effectuees dans la pile d'experiences critiques Aquilon II. Les experiences sont groupees en quatre ensembles: etude systematique de reseaux (mesures de laplaciens) etudes particulieres aux reseaux comportant le refroidissement par gaz mesures de distributions fines de densite (indices de spectre, etc mesures sur des reseaux ou des echantillons comportant de l'uranium a des enrichissements differents ou du plutonium. Dans la deuxieme partie on passe en revue les etudes de caractere theorique. L'ensemble des resultats a permis d'asseoir des methodes de calcul qui ont accru notablement la comprehension des phenomenes neutroniques dans les reseaux, et d'etablir un formulaire rendant compte des experiences sur reseaux neufs et capable de predire correctement l'evolution des proprietes neutroniques du combustible avec l'irradiation. Quelques etudes particulieres aux reacteurs de puissance sont mentionnees. (auteurs)}
place = {France}
year = {1964}
month = {Jul}
}