Measurement by oscillation of the anti-reactivity of a control plate in Zoe
Description
The displacement of a control plate leads to a corresponding variation in the multiplication factor. Measurements were done, by an oscillation method, on the anti-reactivity of a control plate in the pile Zoe as a function of its height. The plate was made to oscillate with small amplitude around a given position, and the value of the modulation of neutron density was measured. From this absolute values of the differential variation of reactivity for each mean oscillation position could be deduced directly from the kinetic equations. The curve of the differential effect as a function of the height, graphically integrated, gives the overall effect of anti-reactivity of the plate. The variation of this curve with the heavy water level is then studied. (authors)
Abstract (French)
Le deplacement d'une plaque de reglage provoque une variation correspondante du facteur de multiplication. On mesure, par une methode d'oscillation, l'antireactivite d'une plaque de reglage de la pile ZOE en fonction de sa hauteur. La plaque etant animee d'un mouvement periodique de faible amplitude autour d'une position donnee, on mesure le taux de modulation de la densite des neutrons. Les equations de la cinetique permettent d'en deduire directement la variation differentielle de reactivite pour chaque position moyenne d'oscillation. La courbe de l'effet differentiel en fonction de la hauteur, integree graphiquement, donne l'effet global de l'antireactivite de la plaque. On etudie ensuite la deformation de cette courbe avec le niveau d'eau lourde. (auteurs)Files
46012527.pdf
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Additional details
Additional titles
- Original title (French)
- Mesure de l'antireactivite d'une plaque de reglage de Zoe par oscillation
Identifiers
Publishing Information
- Imprint Pagination
- 11 p.
- Report number
- CEA-N--0179
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 46012527
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CALIBRATION; CEA; CONTROL ELEMENTS; EL-1 REACTOR; FISSION NEUTRONS; HEAVY WATER; MULTIPLICATION FACTORS; NEUTRON DENSITY; OSCILLATIONS; PILE OSCILLATION TECHNIQUES; PLATES; REACTIVITY; REACTIVITY COEFFICIENTS; REACTOR KINETICS
- Descriptors DEC
- BARYONS; DEUTERIUM COMPOUNDS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; EXPERIMENTAL REACTORS; FERMIONS; FRENCH ORGANIZATIONS; HADRONS; HEAVY WATER COOLED REACTORS; HEAVY WATER MODERATED REACTORS; HYDROGEN COMPOUNDS; IRRADIATION REACTORS; ISOTOPE PRODUCTION REACTORS; KINETICS; NATIONAL ORGANIZATIONS; NATURAL URANIUM REACTORS; NEUTRONS; NUCLEONS; OXYGEN COMPOUNDS; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; TANK TYPE REACTORS; THERMAL REACTORS; WATER
Optional Information
- Notes
- 3 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/