1. MIRI Optical System CDR, 6 th & 7 th December 2006 Mid InfraRed Instrument 07-1 Optical System Critical Design Review (CDR) TIPS Presentation: Margaret Meixner

2. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-2 MIRI CDR Process l Hybrid ESA/NASA CDR: -Oral presentations for panel Dec 6&7 (NASA style) -Main focus is on month long review of MIRI data packet by expert panels who write and collect RIDs -Anyone can submit a RID for MIRI (yes that means you) by giving it to one of the panel or board members; Peter Stockman is on the board. l RIDs collected and sorted in January. l Disposition of RIDS presented to the board in February l This presentation provides a status of MIRI at the time of CDR.

3. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-3

4. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-4

5. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-5

6. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-6

7. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-7 Imager - Optical Requirements (Wright) Requirements: l > 2 square arcmin field of view, with a 0.11 arcsecond pixel scale l Image Quality -> 58% of light within first dark ring of model telescope PSF -Strehl ratio > 85 % longward of 5.6  m l Coronagraphy in 4 filter bands (see Design Doc. for details) l R=100 Spectroscopy Simulated NIR JWST field (Myungshin Im 1998) 1.3 arcmin 1.7 arcmin Design:

8. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-8

9. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-9

10. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-10

11. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-11

12. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-12

13. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-13 Medium Resolution Spectrometer - Format (Wright) 10 arcseconds Channel 1 (4.9 - 7.7  m) Channel 2 (7.4 - 11.8  m) Channel 3 (11.4 - 18.2  m) Channel 4 (17.5 - 28.8  m) Wavelength/Velocity Each channel’s field of view is sliced, dispersed and detected. REQUIREMENT - Integral Field Spectroscopy with > 3 arcsec field of view from 5 to 28.5 µm.

14. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-14 The MRS concept (Wells) IFU 1B IFU 1A IFU 2A IFU 2B Collimator Camera 1 Camera 2 FPA 1 FPA 2 Grating LW dichroic centre dichroic SW dichroic

15. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-15 MIRI MRS - Spectral Coverage (Glasse) Wavelength [  m] Spectral Resolving Power l The MRS covers the 5 to 28 micron range in 12 sub-spectra FRD 2.5.1.2 How the spectra will appear on the MRS’s two detectors

16. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-16 MIRI MRS FOV Name -range  microns) FOV (  ) sub-band name  range   microns) IFU1A 4.86  7.74 3.7  3.7 Short Medium Long 4.87  5.82 5.62  6.73 6.49  7.76 IFU1B 7.43  11.84 4.5  4.7 Short Medium Long 7.45  8.90 8.61  10.28 9.94  11.87 IFU2A 11.44  18.20 6.1  6.2 Short Medium Long 11.47  13.67 13.25  15.80 15.30  18.24 IFU2B 17.53  28.75 7.7  7.7 Short Medium Long 17.54  21.10 20.44  24.72 23.84  28.82 Target Acquisition required for some cases Selection of: Grating wheel position: 1 of 3 sub-bands Detector readout Exposure time Dithering/Mapping

17. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-17

18. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-18

19. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-19

20. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-20

21. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-21

22. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-22

23. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-23

24. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-24

25. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-25 MIRI Optical System Modes

26. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-26

27. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-27

28. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-28

29. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-29

30. MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 07-30