| 摘要 |
A radiation source comprises a reservoir, a nozzle, a laser, and a positive lens. The reservoir is configured to retain a volume of fuel. The nozzle, in fluid connection with the reservoir, is configured to direct a stream of fuel along a trajectory towards a plasma formation location. The laser configured to direct laser radiation at the stream at the plasma formation location to generate, in use, a radiation generating plasma. The positive lens arrangement configured to focus an at least potential spread of trajectories of the stream of fuel toward the plasma formation location, the lens comprising an electric field generating element and/or a magnetic field generating element. |
