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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Fraser Clarke
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Instrument Overview Iz-band image slicer IFU with 44x89 spatial pixels Three pixel scales (FoV); –0.24” (21x10”) - no-AO, PALAO-LGS/NGS –0.16” (14x7”) - bright PALAO-NGS –0.08” (7x3.5”) - PALM3K R~4000 spectra from 6500--10050Å in one shot (fixed format) Available 2008B onwards
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Instrument Overview Sensitivity Assumptions –AO delivering 50% EE in 0.5” –0.24” pixel scale –S:N=5 in 3600s ( 3x1200s exposures) per spectral bin Point source Summing four 0.24” spaxels I=21.0 @ 8000Å Surface brightness per 0.24” spaxel 1.3E-17 erg/s/cm 2 / ” @ 9500Å
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Overall SWIFT Optical Layout Only one spectrograph shown
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report SWIFT on PALAO
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Current Progress - Optics All of the optics, bar two lenses, are now in house The image slicer (Winlight Systems) was delivered in September, and looks very good
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Image Slicer Output slit image Slicer stack Pupil mirrors Lenset array
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Image Slicer 44 0.47mm thick slices optically contacted into stack Gold coated
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Image Slicer Image below shows the output of (one-side of) the image slicer showing the staggered slitlet pattern
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Grism Prism-VPH-Prism sandwich
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Mechanics Majority of mechanics being manufactured in house at Oxford Mounting pads, baseplate, pre-optics super-structure ready. Novel diamond-turned lens mounts now in production
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Baseplate and clamps
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Camera Barrels
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Test Cryostat Made in-house Exceeds 36 hour hold-time requirement Real cryostats starting production next week
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Detectors LBNL red-sensitive detectors require some development with SDSU-III controller (Tim Goodsall) Recently got front-side illuminated device working warm
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Detectors
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Detectors First image from Front-Side CCD
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Schedule Original schedule was for O-SWIFT to be commissioned by end of March 2008 We have slipped from this by about 3 months –Slower in design and mechanics manufacturing than expected Still in-line with PALAO relayout schedule, and TAC commissioning slots
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report
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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Early June
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