Infrared detectors used at ING
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For general information about Infrared Arrays, please read chapter 2 of Martin Beckett's thesis or here.

CameraARNICAFASTWHIRCAMCIRSIINGRIDLIRIS
Pixels256×25658×62256×2564*(1024×1024) 1024×1024
1024×1024
Pixel size40µ (0.35 arcsec)(0.5 arcsec) 30µ (0.24 arcsec)18.5µ 18.5µ(0.25 arcsec) 18.5µ(0.25 arcsec)
ArrayHgCdTe NICMOS-3 InSb SBRC InSbRockwell HgCdTe HAWAII Rockwell HgCdTe HAWAII Rockwell HgCdTe HAWAII
Field of View 0.50' (WHT f/11)1.02'×1.02' (WHT f/11) 20.9'×20.9' (WHT f/2.8)
29.64'×29.64' (INT f/3.3)
4.27'×4.27'(WHT f/11) 4.27'×4.27'(WHT f/11)
Readout noise40-60e-<280e- 40-55e- 37-65e- 3-10e-
Dark current<1e- 50e-/second 10e-/s ~ 0.065 e-/s
Spectral range0.9 - 2.5µ 1.4-2.4µ 0.8-2.3µ 0.8-2.5µ 0.8-2.5µ 0.8-2.5µ
Peak Quantum Efficiency 80%64%
QE @ J band (1.28µ) 80%58% 58% 80%
QE @ H band (1.67µ) 80% 58%58%
QE @ K band (2.00µ)>65% 20%80% 63% 62% 90%
QE @ Ks band (2.20µ) 80%63%
First commissioningDecember 1993 July 1991February 1995December 1997 March 2000 February 2003
Retired from service 1998
Temperature60K 6K 30K77K 70K 70K
Full-well capacity250,000e- 148,400-179,200 e- 100,000-150,000 e-


Figure 1. Evolution of optical CCDs and infrared arrays at ING in terms of detection efficiency (=Peak Quantum Efficiency(%)/Typical Readout Noise(e-)) [ JPEG | TIFF ].


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Last modified: 23 July 2015