Detector

Field of view

view

Average detector properties(from JWST Documents)

NIRCam

Parameter

Short wavelength channel
(0.6-2.3 μm)

Long wavelength channel
(2.4-5.0 μm)

CDS readnoise
(correlated double sampling)

15.77 ± 0.94e-

13.25 ± 0.08e-

Dark current in 1,000s

1.9 &plusmn: 1.1e-/ks

34.2 ± 5e-/ks

Effective noise in 1,000s
(93 groups of full-frame RAPID)

7.79 ± 0.68e-

9.28 ± 0.12e-

Gain(e-/ADU)

2.05 ± 0.4

1.82 ± 0.4

Well capacity (saturation level
with superbias subtracted)

105,750 ± 2.264e-

83,300 ± 1,200e-

Quantum efficiency (QE)

70%@0.6μm
80%@1.0μm
90%@2.0μm

80%@3μm
90%@4μm
60%@5μm

Interpixel capacitance (IPC)

0.53% ± 0.04%

0.59% ± 0.04%

Post-pixel coupling (PPC)

0.08% ± 0.02%

0.19% ± 0.03%

Persistence (for same exposure time
as previous nearly saturated image)

<0.01%

<0.01%