The astronomers well understand that cooling sensors results in both less noise
and less signal
decay. See
http://www.astrophys-assist.com/educate/noise/noise.htm and
http://www.andor-tech.com/library/digital_Cameras/index.asp?app=316
They have a variety of ways of post processing to reduce noise.
tOM
On Tuesday, October 03, 2006 at 21:06,
Moose <olympus@xxxxxxxxxx> wrote:
> AllanDan wrote:
> > Digital noise is due to sensor heat <i>and</i> optics.
> As Chuck Suggests. it's probably more than just that and probably gets
> into arcana of chip physics.
> > I didn't think it important to make the distinction because I was merely
> > offering a work around based on my experience.
> >
> I absolutely agree. The nature of the problem and how to deal with it
> are more important than the cause.
>
> I was just taken with images of stray charges running 'downhill' from
> full to empty areas on a chip (sort of like images of flowing lava) and
> of rogue light sneaking over where it wasn't supposed to be, just to
> make trouble. Probably the teenage photons that do it. :-)
>
> Moose
>
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