| 摘要 |
Devices are disclosed herein which may comprise a vessel; a material disposed in the vessel for creating an EUV light emitting plasma at a plasma site, the plasma generating debris; a near normal incidence EUV reflective optic disposed in the vessel; and a source of a magnetic field for deflecting debris in the vessel to protect the optic, the source positioned to interpose the optic between the source and the plasma site.
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