Patent ID: 6946669

Claim:
An arrangement for generating EUV radiation based on gas discharged produced plasma comprising: a vacuum chamber provided for the generation of radiation, said vacuum chamber having an axis of symmetry representing an optical axis for the generated EUV radiation upon exiting the vacuum chamber; a plurality of source modules of identical construction, each of which generating a radiation-emitting plasma and having bundled EUV radiation, said source modules being arranged so as to be uniformly distributed around the optical axis in order to provide successive radiation pulses; bundled beams of the individual source modules having beam axes which intersect at a point on the optical axis; a reflector device being provided which is supported so as to be rotatable around the optical axis and which deflects the bundled radiation delivered by the source modules in the direction of the optical axis successively with respect to time; and a synchronization device being provided for circularly successive triggering of the source modules depending upon the actual rotational position of the reflector device and upon the pulse repetition frequency which is preselected by means of the rotating speed.