Published May 12, 1978 | Version v1
Miscellaneous Open

Neutronic study of heavy nucleus produced in nuclear reactor fuel cycle

Creators

Description

Importance of minor actinides (U, Np, Pu, Am and Cm isotopes) PWR and fast neutron reactors and their associated fuel cycle is examined in this thesis. The amount of actinides formed in the various types of fuels or reactors are given. The different ways of formation and their importance are described. Modifications of the core reactivity due to actinides are shown. After a review of the fuel cycle (enrichment, fabrication, reprocessing, transport) actinide evolution outside the core is described and main problems concerning radioactivity in the different steps of the cycle or long term storage are underlined.

Abstract (French)

Cette these est consacree a l'importance des actinides ''mineurs'' (U, Np, Pu, Am, Cm) dans les PWR et les reacteurs a neutrons rapides et dans les cycles de combustible associes. On donne les quantites d'actinides qui se forment dans les divers types de combustible ou de reacteurs utilises. On decrit les voies de formation et leurs importances respectives. On montre les modifications que la presence de ces actinides peut apporter au bilan en reactivite du coeur. Apres une description de l'ensemble du cycle du combustible (enrichissement, fabrication, retraitement, transport), on decrit l'evolution des actinides hors du coeur en degageant les principaux problemes qu'ils posent, que ce soit des problemes d'activites radioactives lors des differentes phases du cycle, ou des problemes de stockage a long terme.

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Additional details

Additional titles

Original title (French)
Etude neutronique des noyaux lourds formes dans le cycle du combustible des reacteurs nucleaires.

Publishing Information

Imprint Pagination
247 p.
Report number
FRNC-TH--1665

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
53017583
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
BURNUP; CURIUM ISOTOPES; FUEL CYCLE; ISOTOPE RATIO; LMFBR TYPE REACTORS; NEPTUNIUM ISOTOPES; PLUTONIUM ISOTOPES; PWR TYPE REACTORS; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE STORAGE; RADIOACTIVE WASTES; REACTIVITY; SPENT FUELS; URANIUM ISOTOPES
Descriptors DEC
BREEDER REACTORS; DIMENSIONLESS NUMBERS; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FUELS; ISOTOPES; LIQUID METAL COOLED REACTORS; MANAGEMENT; MATERIALS; NUCLEAR FUELS; POWER REACTORS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTE MANAGEMENT; REACTOR MATERIALS; REACTORS; STORAGE; THERMAL REACTORS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTE STORAGE; WASTES; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses; This record replaces 16003087