What is the relationship between Rayleighs and counts in a CCD?

[Logarythmic]

How can I find the number of Rayleighs per count if I know the column emission rate, radiance, irradiance, #photons per pixel and #photoelectrons per pixel?
I'm totally lost in this one, please help!

 

[astrorob]

I've never had to deal with Rayleighs, but you may be able to work out by unit anaylsis.

http://www.irf.se/~urban/avh/html/node13.html#SECTION00712000000000000000

 

[Logarythmic]

I'm using that paper, my problem is that I'm not really sure about the definition of counts.