Basic radiometry and SNR eq. for CCD, ICCD - UNIS
Basic radiometry and SNR eq. for CCD, ICCD - UNIS
Basic radiometry and SNR eq. for CCD, ICCD - UNIS
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Where are my photons?<br />
• Transmittance (atmosphere, optics, filters. . . )<br />
• Apperture of the optics<br />
• Area of detector (pixel-area <strong>for</strong> imagers)<br />
• Number of photoelectrons collected in a pixel<br />
n −<br />
e = QE(λ)Eγi γ tintApix<br />
−<br />
e <br />
(44)<br />
(45)<br />
n e − γ ≈ QE(λ)TtintApix<br />
10 10 I<br />
16f 2 #<br />
e − <br />
<strong>UNIS</strong> 2011-11-15 – p. 59