An undulator

An undulator for a free electron laser includes a pipe for an electron beam and one or more periodic magnetic structures extending axially along the pipe. Each periodic magnetic structure includes a plurality of magnets and a plurality of passive ferromagnetic elements, the plurality of magnets bein...

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Bibliographische Detailangaben
Hauptverfasser:	TOMA, ADRIAN, AKKERMANS, JOHANNES ANTONIUS GERARDUS, GRIMMINCK, LEONARDUS ADRIANUS GERARDUS, NIKIPELOV, ANDREY ALEXANDROVICH, LOOPSTRA, ERIK ROELOF, NIENHUYS, HAN-KWANG, RENKENS, MICHAEL JOZEF MATHIJS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY DEVICES USING STIMULATED EMISSION ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS
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Beschreibung
Zusammenfassung:	An undulator for a free electron laser includes a pipe for an electron beam and one or more periodic magnetic structures extending axially along the pipe. Each periodic magnetic structure includes a plurality of magnets and a plurality of passive ferromagnetic elements, the plurality of magnets being arranged alternately with the plurality of passive ferromagnetic elements in a line extending in an axial direction. Each of the plurality of magnets is spatially separated from the pipe, and each of the passive ferromagnetic elements extends radially from an adjacent magnet towards the pipe. A spacer element may be provided between the magnets and the pipe to provide radiation shielding for the magnets and/or cooling for the pipe.