We wanted to look at the noise background of the spectrometer, to check that our signals would be above background. We take 3 10s spectra covering the input to the spectrometer.

Spectra 1:

Spectra 2:

Spectra 3:

 

We then subtract each pair from each other to look at the residual noise background. The background appears to be order 10-15 counts for most of the spectrum.

1-2:

 

1-3:

2-3:

 

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