Question

With multiplication gain, why does signal increase but noise stays the same

Answer 1

Answer:

In principle, the process of illumination will lead to a continued increase in the ... speed, higher gain and low noise. ... detector design, one defines signal to noise ratio (SNR) as.

Answer 2

Electron Multiplication (EM) technology has been one of the most important developments in light detection over the last decade. It has revolutionized the whole area of low-light Spectroscopy and imaging, enabling research that hitherto would not have been possible. EM on the CCD chip allows for the amplification of the captured electron signal before it is ever read out through the camera electronics resulting in reduction of the effective readout noise to sub-electron levels.