on 2004/08/01 10:57 PM, W Shumaker at om4t@xxxxxxxx wrote:
> I have never heard of photon noise?
There is noise in the rate at which photons arrive from any source. This
would set an upper limit to time+spatial resolution: at some point if we ask
for a very quick sample from very small parts of the subject we start to
notice the photon stream gets thin and lumpy.
Andrew
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