Like the Geiger Kit in the previous post, this project is going to get too big to properly handle in a blog format.
So it's introduced here, but the function and build details are posted on this website.
Listening to what people want in the way of radiation detection, it appeared that there are 3 types of needs:
the outside piece outside . . .
the inside piece . . .
Again, you can find all the details on this website. However, I'd appreciate any comments you'd like to leave here.