The INS NIRCam Team
U. Arizona NIRCam Team Members PI: Marcia Rieke Doug Kelly Karl Misselt John Stansberry Kevin Flaherty Brenda Frye Christopher Willmer TIPS 4/18/2013
INS NIRCam Team Members Elizabeth Barker Deputy Lead ETC WG Lead Andrew Colson RIA David Golimowski I&T Lead Coronagraphs WG Jerry Kriss Team Lead Backgrounds WG Jennifer Lotz Operations WG Efficiency WG Armin Rest Pipeline WG John Stansberry TBD in June Massimo Robberto Technical Lead Calibration WG TIPS 4/18/2013
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 TIPS 4/18/2013
Fields of View of JWST Instruments -2 -4 2 4 -6 -8 6 8 Horizontal Field Position (arcmin) Vertical Field Position (arcmin) NIRSpec NIRCam MIRI NIRISS FGS TIPS 4/18/2013
The Near Infrared Camera 2 functionally identical (mirror image) modules 2 channels in each module: Short Wavelength (0.6-2.3 m) Long Wavelength (2.4-5.0 m) HgCdTe FPA Format (22) (2040 2040) 1 (2040 2040) 0.032 arcsec/pixel 0.065 arcsec/pixel FOV= 2.212.21 arcmin2 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: TIPS 4/18/2013
NIRCam Optical Layout TIPS 4/18/2013
Assembled Modules TIPS 4/18/2013
NIRCam Filter Wheel TIPS 4/18/2013
NIRCam Optical Elements TIPS 4/18/2013
NIRCam Focal Plane Arrays TIPS 4/18/2013
MULTIACCUM Readout Mode (“ramp”) (“ramp”) TIPS 4/18/2013
Detector Performance TIPS 4/18/2013
NIRCam Sensitivity Comparison Ground SST HST JWST NIRCam Galaxy models: 5-sigma, 50,000 secs microns TIPS 4/18/2013
NIRCam Coronagraph - 1 TIPS 4/18/2013
NIRCam Coronagraph - 2 TIPS 4/18/2013
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 grisms on 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 TIPS 4/18/2013
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. TIPS 4/18/2013