Published 1975 | Version v1
Report Open

Neutron irradiation behavior of different classes of carbons

Creators

  • 1. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Technologie
  • 2. Centre National de la Recherche Scientifique, 33 - Pessac (France). Centre de Recherches de Chimie Structurale Paul Pascal

Description

The electronic properties of various carbons have been studied as a function of irradiation (neutron) dose and annealing. A general interpretation in terms of positive holes (in the valence band) and localized or delocalized paramagnetic centres created by the displacement of carbon atoms due to neutron irradiation is given. Different classes of carbons may be defined and an ''equivalent dose'' is used to characterize each carbon in its class. The irradiation and annealing behavior of graphites and pyrocarbons may also be visualized through their ''paths'' in a Hall effect - magnetic susceptibility two-dimensional space

Availability note (English)

MF available from INIS under the Report Number.

Abstract (French)

Les proprietes electroniques de divers carbones ont ete etudiees en fonction des doses d'irradiation neutronique et du recuit. Une interpretation generale est donnee en fonction des trous positifs (dans la bande de valence) et des centres paramagnetiques localises ou delocalises crees par deplacement des atomes de carbone sous l'effet de l'irradiation neutronique. Differentes classes de carbones peuvent etre definies et une dose fictive est utilisee pour caracteriser chaque carbone dans sa classe. Le comportement des carbones et des graphites sous irradiation et durant le recuit peut etre represente par une trajectoire dans l'espace a deux dimensions effet-Hall susceptibilite magnetique

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Additional details

Additional titles

Original title (French)
Evolution de diverses classes de carbones par irradiation neutronique

Publishing Information

Imprint Pagination
31 p.
Report number
CEA-CONF--3154

Conference

Title
12. Biennial conference on carbon.
Dates
28 Jul 1975.
Place
Pittsburgh, USA.

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
7236539
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNEALING; ELECTRIC CONDUCTIVITY; GRAPHITE; HALL EFFECT; MAGNETIC SUSCEPTIBILITY; NEUTRONS; PHYSICAL RADIATION EFFECTS; PYROLYTIC CARBON
Descriptors DEC
BARYONS; CARBON; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; HEAT TREATMENTS; MAGNETIC PROPERTIES; NONMETALS; NUCLEONS; PHYSICAL PROPERTIES; RADIATION EFFECTS