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The INS NIRCam Team

The INS NIRCam Team. U. Arizona NIRCam Team Members. PI: Marcia Rieke. Karl Misselt. Doug Kelly. John Stansberry. Christopher Willmer. Kevin Flaherty. Brenda Frye. INS NIRCam Team Members. Elizabeth Barker Deputy Lead ETC WG Lead. Andrew Colson RIA. Jerry Kriss Team Lead

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The INS NIRCam Team

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  1. The INS NIRCam Team

  2. U. Arizona NIRCam Team Members PI: Marcia Rieke Karl Misselt Doug Kelly John Stansberry Christopher Willmer Kevin Flaherty Brenda Frye

  3. INS NIRCam Team Members Elizabeth Barker Deputy Lead ETC WG Lead Andrew Colson RIA Jerry Kriss Team Lead Backgrounds WG David Golimowski I&T Lead Coronagraphs WG Massimo Robberto Technical Lead Calibration WG Jennifer Lotz Operations WG Efficiency WG Armin Rest Pipeline WG John Stansberry TBD in June

  4. NIRCam has Two Imagers in Two Modules Two adjacent fields of view (2.2 arcminute)2 Both fields in SW and LW bands Two back-to-back modules

  5. 4 NIRISS FGS 2 Vertical Field Position (arcmin) 0 NIRCam NIRSpec -2 MIRI -4 -8 -6 -4 -2 0 2 4 6 8 Horizontal Field Position (arcmin) Fields of View of JWST Instruments

  6. The Near Infrared Camera • 2 functionally identical (mirror image) modules • 2 channels in each module: • Filters provide (W  R=4, M  R=10, N R=100) • Sensitivity (10, R=4, 104 s): • 1.1 m: 10.4 nJy • 2.0 m: 12.1 nJy • 4.4 m: 24.5 nJy • Coronagraphic masks:

  7. NIRCam Optical Layout

  8. Assembled Modules

  9. NIRCam Filter Wheel

  10. NIRCam Optical Elements

  11. NIRCam Focal Plane Arrays

  12. MULTIACCUM Readout Mode (“ramp”) (“ramp”)

  13. Detector Performance

  14. NIRCam Sensitivity Comparison Ground SST HST JWST NIRCam Galaxy models: 5-sigma, 50,000 secs microns

  15. NIRCam Coronagraph - 1

  16. NIRCam Coronagraph - 2

  17. NIRCam’s Wavefront Sensing Role First Light • NIRCam provides the imaging data needed for wavefront sensing. • Dispersed Hartmann Sensors at 0° and 60° orientations permit phasing of adjacent mirror elements. • Two grismson the long wavelength channel provide an alternative to the Dispersed Hartmann Sensor (DHS). After segment capture Coarse phasing w/DHS Spectra recorded by NIRCam DHS at pupil Fine phasing After coarse phasing Fully aligned

  18. NIRCam Status • Cryovac 3 successfully finished April 11. • Instrument currently in bake out to meet contamination requirements. • ICE rebuilding underway. EMI testing is next. • Shipment to GSFC expected at end of May. • Acoustic and vibe testing (at APL?) in June. • ICE boxes arrive late August. • FPE delivered in September. • Acceptance review at GSFC in October. • New SW FPAs are in house at UofA, and they look beautiful. Expect to prepare these and place in NIRCam before ISIM CV2. • New LW FPAs ready at Teledyne. Hope to prepare these too.

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