1. The INS NIRCam Team

2. U. Arizona NIRCam Team Members
PI: Marcia Rieke
Doug Kelly
Karl Misselt
John Stansberry
Kevin Flaherty
Brenda Frye
Christopher Willmer
TIPS 4/18/2013

3. 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

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
TIPS 4/18/2013

5. 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

6. The Near Infrared Camera
2 functionally identical (mirror image) modules
2 channels in each module:
Short Wavelength
( m)
Long Wavelength
( m)
HgCdTe FPA Format
(22)  (2040  2040)
1  (2040  2040)
0.032 arcsec/pixel
0.065 arcsec/pixel
FOV= 2.212.21 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

7. NIRCam Optical Layout
TIPS 4/18/2013

8. Assembled Modules
TIPS 4/18/2013

9. NIRCam Filter Wheel
TIPS 4/18/2013

10. NIRCam Optical Elements
TIPS 4/18/2013

11. NIRCam Focal Plane Arrays
TIPS 4/18/2013

12. MULTIACCUM Readout Mode
(“ramp”)
(“ramp”)
TIPS 4/18/2013

13. Detector Performance
TIPS 4/18/2013

14. NIRCam Sensitivity Comparison
Ground
SST
HST
JWST NIRCam
Galaxy models:
5-sigma, 50,000 secs
microns
TIPS 4/18/2013

15. NIRCam Coronagraph - 1
TIPS 4/18/2013

16. NIRCam Coronagraph - 2
TIPS 4/18/2013

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 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

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.
TIPS 4/18/2013