I find it interesting that your questions seem to relate to the usefulness and validity of this project. :-)
I don't understand. Wouldn't usefulness questions be more like these hypothetical questions...
Do you stay inside when the radiation is high?
Did you include a radiation sensor because, being in Colorado, you're concerned about exposure to the sun's radiation?
Have you positioned the sensor at different places on your property in a search for hotspots?
...all of which, as far as I'm concerned, are your personal business.
And wouldn't any self respecting set of validity questions have to include: "What did you pay for it?"
In any case, I hope I did not offend you. I really am just curious.
The detection of radiation was only one facet of this project,
It's also the facet that didn't get much ink on your blog. Which is why I was curious about it.
the solar power budget, use of the transceivers, and logging are some of the others.
And I truly appreciate
those facets of your project and your willingness to share the details! I hope to build something very similar for my wife. I have the same sets of radios and am so very grateful that you've published your testing results!
Hopefully, some of the pieces and concepts may be useful to others.
It has already been useful to me. Thank you.