Notes about averaging (settings)

A project log for All-In-One Gamma-Ray Spectrometer

More sensitive to gamma radiation than a Geiger counter with the added bonus of telling exactly what's inside your samples!

nuclearphoenixNuclearPhoenix 12/06/2023 at 21:412 Comments

I'm doing some last in-depth testing to optimize all the device settings for the best energy resolution possible and it looks like I found a much better suited setting for the ADC "averaging". In my case, I was able to get an improvement of about 1% just by switching this setting ("set averaging 2" from the default value 5). I've also just now changed the default value for averaging to 2 in the 4.x.x firmware to apply this improvement. If you already changed something in the settings, or you're using one of the older board revisions, you'll have to edit it manually.

Give it a try, it might even work on older board revisions, but your mileage may vary. Nothing can break, so just feel free to experiment. If you're not sure, just reset the settings afterwards and you're fine.


John Beale wrote 12/10/2023 at 18:06 point

I am curious what length of pulse counting time this plot represents.  The 659 keV peak certainly stands out.

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NuclearPhoenix wrote 12/28/2023 at 21:06 point

Hi there, that was 2 hours. Sorry for getting back this late, Hackaday doesn't notify for comments unfortunately.

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