Dubail, A.; Champion, G.; Pailhes, A.
Electricite de France (EDF), 75 - Paris (France)1994
Electricite de France (EDF), 75 - Paris (France)1994
AbstractAbstract
[en] Two probes are placed inside the reactor containment to measure the concentration of nitrogen 13 in gas which is sampled respectively from the inside space under the casing on the reactor closure head and from free space inside the containment. Each probe consists of a measurement chamber isolated from the ambient radiation by shielding. A signal processing system, outside the containment, indicates the presence of leak and its flow rate. 5 figs
Original Title
Dispositif indicateur du debit d'une fuite d'un circuit primaire de reacteur nucleaire
Primary Subject
Source
14 Jan 1994; 10 Jul 1992; 21 p; FR PATENT DOCUMENT 2693551/A/; FR PATENT APPLICATION 9208596; Available from Institut National de la Propriete Industrielle, Paris (France); Application date: 10 Jul 1992
Record Type
Patent
Country of publication
BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BUILDINGS, CONTAINMENT, COOLING SYSTEMS, ELECTRON CAPTURE RADIOISOTOPES, ENRICHED URANIUM REACTORS, ISOTOPES, LIGHT NUCLEI, MINUTES LIVING RADIOISOTOPES, NITROGEN ISOTOPES, NUCLEI, ODD-EVEN NUCLEI, POWER REACTORS, RADIOISOTOPES, REACTOR COMPONENTS, REACTOR COOLING SYSTEMS, REACTORS, THERMAL REACTORS, WATER COOLED REACTORS, WATER MODERATED REACTORS
Reference NumberReference Number
INIS VolumeINIS Volume
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Boudan, M.; Pailhes, A.
Electricite de France (EDF), 75 - Paris (France)1991
Electricite de France (EDF), 75 - Paris (France)1991
AbstractAbstract
[en] On a measurement system giving a result relative to the said variable an iterative simulation is performed taking into account the randomness of the measured phenomenon, distinguishing the evolution of simple, double, triple... in the electronic processing. An approximative result is determined and compared to the result obtained by simulation. Application is made to the measurement of activity level of radionuclides present in a circulating fluid, for instance in a PWR
[fr]
On utilise une chaine de mesure qui fournit un resultat relatif a ladite grandeur, on effectue une simulation mathematique iterative en prenant en compte le caractere de variable aleatoire du phenomene mesure, par distinction du devenir des evenements simples, doubles, triples..., dans les moyens electroniques de traitement. On determine un resultat approche relatif a la grandeur et on compare le resultat de la simulation au resultat de la mesure. Application a la mesure de l'activite volumique de radioelements presents dans un fluide en circulation, p. ex. dans un reacteur a eau pressuriseeOriginal Title
Procede de mesure d'une grandeur physique a caractere aleatoire et impulsionnel, ou transformable en impulsionnel, et application en spectrometrie gamma
Source
1 Feb 1991; 26 Jul 1989; 45 p; FR PATENT DOCUMENT 2650398/A/; FR PATENT APPLICATION 8910074; Available from Institut National de la Propriete Industrielle, Paris (France); Application date: 26 Jul 1989
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
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Joffre, H.; Pailhes, A.
CEA, 75 - Paris (France); Etablissements Merlin et Gerin, 38 - Grenoble (France)1984
CEA, 75 - Paris (France); Etablissements Merlin et Gerin, 38 - Grenoble (France)1984
AbstractAbstract
[en] A mouldable plastic material which comprises a thermoplastic matrix composed of an olefin resin, a thermoset organic filler containing nitrogen, a cellulosic organic filler and an inorganic filler, the fillers being such as not to modify the rheological properties of the olefin resin and the amounts of the various components being determined to make the elementary composition and its average atomic weight correspond to those of human tissues. The material is characterized in that it comprises by weight 60-65% carbon, 9-11% hydrogen, 2-3% nitrogen, 7-11% organic oxygen, 12-17% alumina and 0-3% titanium oxide
[fr]
Materiau plastique moulable comportant une matrice thermoplastique constituee par une resine olefine, une charge organique thermodurcie apportant de l'azote, une charge organique cellulosique et une charge minerale, les charges etant choisies pour ne pas modifier les proprietes rheologiques de la resine olefine et la proportion des differents composants du materiau etant determinee pour faire correspondre la composition elementaire du materiau et sa masse atomique moyenne a celles des tissus humains. Le materiau est caracterise par le fait que sa composition ponderale comporte environ 60 a 65% de carbone, 9 a 11% d'hydrogene, 2 a 3% d'azote, 7 a 11% d'oxygene organique, 12 a 17% d'alumine et 0 a 3% d'oxyde de titaneOriginal Title
Materiau equivalent aux tissus humains mous vis-a-vis des electroons, photons et neutrons
Primary Subject
Source
13 Jan 1984; 9 Jul 1982; 6 p; FR PATENT DOCUMENT 2529900/A/; FR PATENT APPLICATION 8212236; Available from Institut National de la Propriete Industrielle, Paris (France); Application date: 9 Jul 1982
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
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AbstractAbstract
No abstract available
Original Title
Presentation de l'equipement industrialise; Plutonium monitor BFSA
Source
CEA, 75 - Paris (France); Societe Francaise de Radioprotection, 92 - Fontenay-aux-Roses; 481 p; ISBN 2-7272-0084-6; 
; 1983; p. 367-369; Commisariat a l'Energie Atomique; Saclay (France); Congress on plutonium and radioprotection; Saclay (France); 14-16 Jun 1983; Published in summary form only.
; 1983; p. 367-369; Commisariat a l'Energie Atomique; Saclay (France); Congress on plutonium and radioprotection; Saclay (France); 14-16 Jun 1983; Published in summary form only.
Record Type
Book
Literature Type
Conference
Country of publication
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