EP 0520847 A1 19921230 - Process for working with a laser in a contaminated zone of a nuclear power plant and device for carrying out the process.
Title (en)
Process for working with a laser in a contaminated zone of a nuclear power plant and device for carrying out the process.
Title (de)
Verfahren zum Arbeiten mit Laser in kontaminiertem Gebiet einer Kernkraftanlage und Vorrichtung zur Durchführung des Verfahrens.
Title (fr)
Procédé de travail au laser dans une zone contaminée d'une installation nucléaire, et équipement pour sa mise en oeuvre.
Publication
Application
Priority
FR 9107897 A 19910626
Abstract (en)
According to this process, the working energy, in the form of at least two pulsed laser beams, is generated outside the contaminated zone (at 12A, 12B); this energy is conveyed by means of at least two optical fibres (18A, 18B) to a position near to the surface to be treated; at this position, the laser beams are combined (at 15) so as to produce at least one resultant laser beam (37); and this beam is sent onto the said surface, possibly via at least one return mirror. Application to the decontamination of the primary circuit in pressurised-water nuclear reactors. <IMAGE>
IPC 1-7
IPC 8 full level
G21F 9/30 (2006.01); B08B 7/00 (2006.01); F22B 37/00 (2006.01); G21D 1/02 (2006.01); G21F 9/00 (2006.01)
CPC (source: EP)
B08B 7/0042 (2013.01); F22B 37/003 (2013.01); G21F 9/005 (2013.01)
Citation (search report)
- [YD] EP 0091646 A1 19831019 - WESTINGHOUSE ELECTRIC CORP [US]
- [A] FR 2300632 A1 19760910 - ARBED [LU]
- [A] GB 2118028 A 19831026 - MAXWELL LAB
- [Y] WORLD PATENTS INDEX LATEST Derwent Publications Ltd., London, GB; AN 86-323709 & JP-A-61 242 273 (FUJI) 28 Janvier 1986
- [A] WORLD PATENTS INDEX LATEST Derwent Publications Ltd., London, GB; AN AN-88-327038 & JP-A-63 241 399 (TOSHIBA) 6 Octobre 1988
Designated contracting state (EPC)
BE CH DE ES LI SE
DOCDB simple family (publication)
EP 0520847 A1 19921230; EP 0520847 B1 19960207; CA 2070265 A1 19921227; CZ 191892 A3 19930113; CZ 284233 B6 19980916; DE 69208161 D1 19960321; DE 69208161 T2 19960704; ES 2082401 T3 19960316; FR 2678418 A1 19921231; FR 2678418 B1 19940805; RU 2084976 C1 19970720; TW 232070 B 19941011; ZA 924699 B 19931227
DOCDB simple family (application)
EP 92401465 A 19920527; CA 2070265 A 19920603; CS 191892 A 19920622; DE 69208161 T 19920527; ES 92401465 T 19920527; FR 9107897 A 19910626; SU 5052108 A 19920625; TW 081101579A01 A 19920530; ZA 924699 A 19920625