Quick Shot

Located near the shield wall underneath the OMEGA viewing gallery in the Target Bay, the ultraviolet alignment table (UVAT) is used daily for several beam alignment and measurement missions. These tasks include targeting operations, ultraviolet centering checks, focus lens assembly retro checks, beam-interference checks, harmonic-energy-diagnostic alignment checks, F-alignment sensor package alignment, ultraviolet diagnostic table alignment, optical transport instrumentation system measurements, and 2ω and 4ωtargeting. The UVAT uses two alignment laser sources to accomplish beam alignment and measurement missions: a 1.5-W UV laser operating at 351 nm and a 500-mW green laser operating at 527 nm. The UV laser is capable of producing two full-aperture (~270-mm-diam) beams; one beam exits the table traveling south and the other north. The green laser is capable of producing one full-aperture beam traveling north only. Shown at the UVAT’s laser-protective barriers is Senior Manufacturing Engineer, Ray Huff.