Patent ID: 9000405
Filing Date: 2015-04-07
Classification: G21K,H05G

Abstract:
1. A system for an extreme ultraviolet light source, the system comprising: one or more optical elements positioned to receive a reflected amplified light beam and to direct the reflected amplified light beam into first, second, and third channels, the reflected amplified light beam comprising a reflection of at least a portion of an irradiating amplified light beam that interacts with a target material, and the first, second, and third channels being three separate paths along which light propagates; a first sensor that senses light from the first channel; a second sensor that senses light from the second channel and the third channel, the second sensor having a lower acquisition rate than the first sensor; and an electronic processor coupled to a computer-readable storage medium, the medium storing instructions that, when executed, cause the processor to: