The mid infrared instrument miri medium resolution spectrometer for jwst martyn wells miri ec ukatc
This presentation is the property of its rightful owner.
Sponsored Links
1 / 24

Carbon Fibre Hexapod (Denmark) PowerPoint PPT Presentation


  • 111 Views
  • Uploaded on
  • Presentation posted in: General

The Mid-Infrared Instrument (MIRI) Medium Resolution Spectrometer for JWST Martyn Wells MIRI EC & UKATC. Spectrometer Pre Optics UKATC. Spectrometer Main Optics Netherlands. Deck (Leicester). Spectrometer Focal Plane Module (USA). Carbon Fibre Hexapod (Denmark). Imager (France).

Download Presentation

Carbon Fibre Hexapod (Denmark)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


The Mid-Infrared Instrument (MIRI) Medium Resolution Spectrometer for JWST Martyn WellsMIRI EC & UKATC


Spectrometer Pre Optics

UKATC

Spectrometer Main Optics

Netherlands

Deck (Leicester)

Spectrometer Focal Plane Module (USA)

Carbon Fibre Hexapod (Denmark)

Imager (France)

Input Optics and Calibration Unit (Belgium)


Summary description


SPO

SMO

Spectrometer block diagram


Spectrometer fov


Exposure C

Exposure B

Exposure A

Dichroic passbands


Spectrometer – l ranges, R, sampling and fov


Ray-trace diagram of the Channel 1 IFU


Diagram of the output slit


Integral Field Unit Optical Layout

Spectrometer Pre-Optics


Here are the flattened envelopes of the sliced and stacked sky images, heading off to the spectrometer collimator mirrors in the Spectrometer Main Optics (SMO)

The position of the Channel 2 collimator mirror


Here, the beam from the Channel 2 collimator is shown, heading back to one of Channel 2’s three diffraction gratings.

The position of a Channel 2 grating.


The light is dispersed by the grating.

Dispersion direction


...and heads back to a fold mirror.


...which sends it to the final, camera mirror, which is a common optical element for Channels 1 and 2 (as is the fold mirror)


The camera mirror forms the final image...


...on the Focal Plane Module (FPM), shown here as the green cylinder.


Here comes the beam from the Channel 1 IFU, collimated and sent to one of Channel 1’s 3 gratings...


...where it is dispersed...


...and sent via this fold mirror to share the last two mirrors on its way to the FPM with the spectrum from Channel 2.


Channel 2a spectra

Constant

wavelength

positions


Some manufactured components


  • Login