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Basic radiometry and SNR eq. for CCD, ICCD - UNIS

Basic radiometry and SNR eq. for CCD, ICCD - UNIS

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At apperture:<br />

Eγapp<br />

= Φγapp<br />

Aapp<br />

Irradiance<br />

= LγAsTaΩds<br />

Aapp<br />

=<br />

<br />

photons<br />

s m 2<br />

At image plane (assuming circular apperture):<br />

Eγi<br />

As<br />

= Lγ<br />

<br />

photons<br />

=<br />

s m2 (1)<br />

<br />

= Φγapp<br />

Ai<br />

Ai<br />

T πd2 app<br />

4r 2 s<br />

<strong>UNIS</strong> 2011-11-15 – p. 15

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