We give here the expression of the rms fluctuations of a pixel
output, for a time series of R successive samples (or exposures),
each exposure corresponding to the average of n consecutive
readouts with elementary integration time 
. It is
assumed that the full time series is obtained over a total
observation time 
. The fluctuations are described by
a HF and a LF term, added quadratically:
where the 
is given for each array in the preceding
sections.
The low frequency noise 
is given by (LW only):
