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Application of active neutron interrogation for on-line analysis in reprocessing plants; Application des methodes d'interrogation neutronique active a l'analyse en ligne dans les usines de retraitement

Abstract

In a reprocessing plant, the real-time knowledge (on-line analysis) of the uranium and plutonium concentrations is a very important parameter for the monitoring of the process and the safety of devices. The active neutron interrogation is a non destructive and non intrusive and fast way to measure these concentrations. This method consists in activating the fissile material with a neutron source (isotopie source or neutron generator) and detecting the induced fission particles (delayed neutrons, delayed gamma rays or prompt neutrons). Several cases have to be considered according to the aim of the measurement and the performances. - The measurement can be performed on a sample (small jug) or on the flowing solution (crossing pot). - The detected particles can be delayed neutrons, delayed gamma rays or prompt neutrons. This report, presents the theory, and the associated signal processing of these methods as well as the qualification results obtained either in laboratory or in industrial environment. (author) [French] Dans une usine de retraitement du combustible nucleaire irradie, la connaissance en temps reel (analyse en ligne) des quantites d'uranium et de plutonium contenues dans les solutions est un parametre extremement important pour la conduite du procede et la surete des appareils. L'interrogation  More>>
Publication Date:
Feb 12, 1993
Product Type:
Thesis/Dissertation
Report Number:
FRCEA-TH-412
Reference Number:
SCA: 050800; 430303; PA: AIX-26:009628; EDB-95:027432; SN: 95001323236
Resource Relation:
Other Information: Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses; This record replaces 26009628; These (D. es Sc.)
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; CALIFORNIUM 252; DELAYED GAMMA RADIATION; DELAYED NEUTRONS; FISSION; FUEL REPROCESSING PLANTS; NEUTRON SOURCES; NONDESTRUCTIVE ANALYSIS; PLUTONIUM; PROMPT NEUTRONS; RADIOACTIVE WASTES; SPENT FUELS; URANIUM; 050800; 430303; SPENT FUELS REPROCESSING; EXPERIMENTAL FACILITIES AND EQUIPMENT
OSTI ID:
10111267
Research Organizations:
CEA Centre d'Etudes de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. d'Etudes des Reacteurs; Grenoble-1 Univ., 38 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR9402392009628
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
304 page(s)
Announcement Date:
Feb 16, 1995

Citation Formats

Passard, Christian. Application of active neutron interrogation for on-line analysis in reprocessing plants; Application des methodes d'interrogation neutronique active a l'analyse en ligne dans les usines de retraitement. France: N. p., 1993. Web.
Passard, Christian. Application of active neutron interrogation for on-line analysis in reprocessing plants; Application des methodes d'interrogation neutronique active a l'analyse en ligne dans les usines de retraitement. France.
Passard, Christian. 1993. "Application of active neutron interrogation for on-line analysis in reprocessing plants; Application des methodes d'interrogation neutronique active a l'analyse en ligne dans les usines de retraitement." France.
@misc{etde_10111267,
title = {Application of active neutron interrogation for on-line analysis in reprocessing plants; Application des methodes d'interrogation neutronique active a l'analyse en ligne dans les usines de retraitement}
author = {Passard, Christian}
abstractNote = {In a reprocessing plant, the real-time knowledge (on-line analysis) of the uranium and plutonium concentrations is a very important parameter for the monitoring of the process and the safety of devices. The active neutron interrogation is a non destructive and non intrusive and fast way to measure these concentrations. This method consists in activating the fissile material with a neutron source (isotopie source or neutron generator) and detecting the induced fission particles (delayed neutrons, delayed gamma rays or prompt neutrons). Several cases have to be considered according to the aim of the measurement and the performances. - The measurement can be performed on a sample (small jug) or on the flowing solution (crossing pot). - The detected particles can be delayed neutrons, delayed gamma rays or prompt neutrons. This report, presents the theory, and the associated signal processing of these methods as well as the qualification results obtained either in laboratory or in industrial environment. (author) [French] Dans une usine de retraitement du combustible nucleaire irradie, la connaissance en temps reel (analyse en ligne) des quantites d'uranium et de plutonium contenues dans les solutions est un parametre extremement important pour la conduite du procede et la surete des appareils. L'interrogation Neutronique Active (iNA) fournit un moyen de mesure non destructif, non intrusif et rapide de ces concentrations. Cette methode consiste a induire des fissions dans les noyaux fissiles presents dans la solution grace a une source de neutrons (source isotopique ou generateur de neutrons) puis a detecter les particules qui en sont issues (neutrons et gamma retardes, neutrons prompts). Plusieurs cas de figures sont envisageables suivant l'application et les performances recherchees: La mesure peut etre effectuee sur une prise d'echantillon (cruchon) ou sur la solution en ecoulement (pot de passage). Les particules detectees peuvent etre les neutrons retardes, les gamma retardes ou les neutrons prompts. Cette these presente les bases theoriques de ces differentes methodes, le traitement du signal associe ainsi que les performances obtenues lors des qualifications experimentales en laboratoire ou en milieu industriel. (auteur)}
place = {France}
year = {1993}
month = {Feb}
}