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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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The Rayleigh (3)<br />

In SI-units the Rayleigh becomes<br />

[Baker <strong>and</strong> Romick, 1976]:<br />

(4)<br />

1 [Rayleigh] ≡ 1 [R] 10 10<br />

<br />

photons<br />

s m 2 (column)<br />

The word column denotes the concept of an<br />

emission-rate from a column of unspecified<br />

length, as discussed above. It should be noted<br />

that the Rayleigh is an apparent emission rate,<br />

not taking absorption or scattering into account.<br />

<br />

<strong>UNIS</strong> 2011-11-15 – p. 23

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