DATE: 2022-01-21
TIME: 14:52 UTC

This post is about radiactivity and snails but it won't cover giant
green slimy beings.
The snail part is that they have appeared in the acquarium by their
own. Don't know where the eggs were present but now there are two or
three snails wandering the sands of the pool.
That's so cool. I hope the ecosystem will stabilize soon as I've 
measured nitrates/nitrites and they rised. That's not good.

On the other hand I've noticed that my smart geiger counter, the
RiumGM gives me different readings if I use the Rium App or the
Open Radiation Map app. The RiumGM should be an energy compensated
dosimeter but the problem is that it's not a gamma spectrometer, so
I do not figure how it makes "energy compensation". Also soviet
geiger counters like Bella are energy compensated but it means that
the tube is covered by a layer of lead that filter beta and low energy
gamma rays.
Maybe the compensation is also based on software and that explains
the differences between the in-house developed app and the open app.
I've asked the producer for infos... let's see.

Have a nice life!