Spectrum - Tritium - 24 days

Here is a 24 day, 10 hour long accumulation from a glow in the dark Tritium tube, vial, thing. It's just like the ones used in fishing indicators, clocks, watches and military defile markers. Often called 'beta lights'. Total counts: 76,669,829 

 

 

 

The massive peak at ~11.8 keV is from Zn Kα X-rays emitted as the Tritium hits the zinc sulfide phosphor and the smaller (~85 keV) peak is most likely from X-ray fluorescence from materials near the detector, or could be backscatter from the detector housing.

 

 

My spectrum is ever so slightly out by 2-3 keV as the peak is shown on the chart at around 14 keV, but should be ~11.8 keV, so it is a tiny bit out of calibration.

The XML file for this spectrum is attached below.