Project Technology Branch Code PMF NASA Ames Research Center Craig R. McCreight, Chief Detector...

Project Technology BranchCode PMF

NASA Ames Research Center

Craig R. McCreight, Chief

Detector team (Cryo team not listed)

Kim Ennico Roy JohnsonJohn Estrada Mark McKelvey Jam Farhoomand Bob McMurrayJohn Goebel Nick Scott Dzung Hoang

Project Technology BranchCode PMF

NASA Ames Research Center

Projects have included:

IRAS detectorsSpitzer IRAC SCA development and testingSpitzer IRS SCA testingSpitzer MIPS mux development and testingGPB detector development and testingJWST NIRCam SCA testingJWST NIRSpec SCA testingJWST MIRI SCA development and testingJH/APL H1RG radiation testing

Project Technology BranchCode PMF

NASA Ames Research Center

IRAC detector development:CRC228 58x62 Si:As BIB and Si:GaCRC463 256x256 Si:As BIBCRC644 256x256 Si:As BIB CRC744 256x256 Si:As BIB (flight parts)

IRS detectors testing:Rockwell 10x50 and 20x64 multiplexersRockwell 128x128 Si:As and Si:Sb BIBs

MIPS multiplexer testingCRC696, development of SB190

Hollywood SIRTF

Significant Role in Spitzer’s Infrared Array Camera

Channel 3 (5.8 µm) and Channel 4 (8.0 µm) Flight Candidates screened and selected in Ames Lab

Project Technology BranchCode PMF

NASA Ames Research Center

Gravity Probe B

Stanford project

John Goebel/Nick Scott

Guide star telescope light detectorsSilicon photodiodes with FET preamps

Project Technology BranchCode PMF

NASA Ames Research Center

JWST

NIRCam: IR and proton testing of RVS SB291/SB305 and of Rockwell H1RG/H2RG megapixel 5µm hybrids for downselect

NIRSpec: low-background and proton testing of H1RG-HgCdTe 5µm hybrid array

MIRI: testing and development, SB305-Si:As BIB 28µm hybrid arrays

Explorer Technology / Origins IR Detector Development

World’s Largest Si:As Mid-IR Detector for Moderate Backgrounds- First prototype of detectors for passively cooled Explorers and SOFIA

Fruitful SF / SS Collaboration; Device fabricated by Raytheon IR Center of ExcellenceProgram leverages strongly on ongoing SF detector development for Origins

1024 x 1024 pixels28 x 28 mm area

Early Cryo CMOS 1024 Si:As

Hybrid tested at NASA ARC in 2001

1024 x 1024 InSb Hybrid SCA on

SB-291 ROIC in 2002

JWST prototype arrays and readouts

SCA985 IR Response

NASA Ames Research Center

0

0.5

1

1.5

2

0 0.5 1 1.5 2 2.5 3 3.5

SCA985 Relative Response v. Applied Bias

Applied Bias (V)

T = 7K. Response to uncalibrated source normalised to 2.5V applied bias.

Project Technology BranchCode PMF

NASA Ames Research Center

Far-IR detectors:

Ge:Ga unstressed to 120µm

GaAs n-type photoconductors to 300µm

Current ROSS funded far-IR Multiplexer development to create 2D arrays

2 K muxes for SOFIA

Bare mux in low-noise test dewar

32-channel mux (SB-190) with 4 Ge:Ga detectors

Project Technology BranchCode PMF

NASA Ames Research Center

Johns Hopkins/Applied Physics LaboratoryImaging Spectrometer for Icy Satellites (ISIS)

H1RG multiplexer radiation testing to100, 200, and300krad(Si)

Possible radiationtesting of HgCdTe4.2µm cutoff arrays