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

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.

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

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

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

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

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:

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

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

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

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

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

MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page Medium Resolution Spectrometer - Format (Wright) 10 arcseconds Channel 1 (  m) Channel 2 (  m) Channel 3 (  m) Channel 4 (  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.

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

MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page 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 How the spectra will appear on the MRS’s two detectors

MIRI Optical System CDR, 6 th & 7 th December 2006 This document contains proprietary information as stated on the cover page MIRI MRS FOV Name -range  microns) FOV (  ) sub-band name  range   microns) IFU1A 4.86   3.7 Short Medium Long 4.87    7.76 IFU1B 7.43   4.7 Short Medium Long 7.45    IFU2A   6.2 Short Medium Long    IFU2B   7.7 Short Medium Long    Target Acquisition required for some cases Selection of: Grating wheel position: 1 of 3 sub-bands Detector readout Exposure time Dithering/Mapping

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

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

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

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

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

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

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

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

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

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

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

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

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

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