canne

CONT: Les collectrons sont rassemblés pour constituer un faisceau introduit dans un tube creux fabriqué en Inconel. Cet ensemble est appelé canne. Suivant la hauteur active du cœur, il y a six à huit collectrons placés les uns au-dessus des autres.

CONT: A self-powered neutron detector comprises a tubular collector, a tubular emitter surrounding this collector, and a tubular collector surrounding this emitter, with electrical insulation between the emitter and the two collectors. The collectors are electrically interconnected. This arrangement produces a detector suitable for external instrumentation on the outside of the pressure vessel of a reactor, for instance, a pressurized-water reactor.