Question

In a perfect linear system with amplifier gain 16 two Co60 peaks are separated by 120 channels. What will be the separation if the gain is increased to 24?

Answer 1

I believe it is a trick question. Two peaks of cobalt-60 are detected and are 120 channels apart [along the x-axis, this may be binding energy (eV) as in X-ray photoelectron spectroscopy or some other physical property]. The amplifier gain has nothing to do with the separation on the axis. The amplifier gain changes the intensity, a higher amplification results in a taller peak. Increasing the gain would only change the intensity of both the peaks, but would leave the channel separation intact. So, the peaks would still be 120 channels apart.