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SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Fraser Clarke.

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Presentation on theme: "SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Fraser Clarke."— Presentation transcript:

1 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Fraser Clarke

2 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

3 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

4 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Overall SWIFT Optical Layout Only one spectrograph shown

5 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report SWIFT on PALAO

6 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

7 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Image Slicer Output slit image Slicer stack Pupil mirrors Lenset array

8 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

9 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

10 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Grism Prism-VPH-Prism sandwich

11 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

12 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Baseplate and clamps

13 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Camera Barrels

14 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

15 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

16 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Detectors

17 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report

18 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Detectors First image from Front-Side CCD

19 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

20 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report

21 SWIFT Team University of Oxford 12 th November 2007O-SWIFT Progress Report Early June


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