Published July 5, 1985 | Version v1
Patent Metadata-only

Particle and radiation shield

Creators

Description

A new shield is claimed for protection against gamma rays, fast or slow neutrons to be set in openings of containment shell and allowing a progressive pressure release in case of overpressure, especially in PWR type reactors. The screen is composed of a stack of spaced sheets of a material absorbing radiations or particles and yielding step by step in case of overpressure

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

On revendique un ecran de protection destine a venir se monter devant une ouverture dans la paroi d'une enceinte enfermant une source emettrice de rayonnements et/ou particules, telles que neutrons rapides et neutrons a basse energie, et sujette a des surpressions internes accidentelles notamment les REP. Cet ecran est constitue par un empilage de feuilles espacees l'une de l'autre et qui sont montees de maniere a pouvoir s'effacer de proche en proche sous l'action de la surpression, lesdites feuilles etant realisees en un materiau absorbant ou freinant lesdits rayonnements ou particules

Additional details

Additional titles

Original title (French)
Ecran de protection aux rayonnements et particules

Publishing Information

Imprint Pagination
10 p.
IPC:
Int. Cl. G21f3/00; G21c9/00; G21c11/02.
IPC
Int. Cl. G21f3/00; G21c9/00; G21c11/02.
Patent number
FR patent document 2557724/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
17035941
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BIOLOGICAL SHIELDS; MOMENT OF INERTIA; PRESSURE RELEASE; PWR TYPE REACTORS; SPECIFICATIONS
Descriptors DEC
ENRICHED URANIUM REACTORS; POWER REACTORS; REACTORS; SHIELDS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
FR patent application 8400009.