A sea of sparks: Seeing radioactivity

I was hoping this would be an artists project page describing the passive imaging of radiation (i.e. not a simple X-ray scan).

Imagine a planar array where each pixel gathers counts like an MCA (multichannel analyzer), mounted in some lead pinhole camera obscura.

This would give an extremely wide range of channels didactically illustrating the presence of calcium in gypsum (dryboard etc), visually show backscatter, etc.

Such pictures of modern and old city scenes would be mesmerizing to watch, partially seeing into buildings, the ground, ...

If you haven't experienced a spinthariscope, I can highly recommend it. I bought one as a Christmas present for a buddy and we both enjoy its demonstration of radioactivity.

Don't miss a chance to see the Cherenkov radiation effect at your local research reactor.

https://en.wikipedia.org/wiki/Cherenkov_radiation

You won't make one at home, but cloud chambers[^1] reveal individual alpha particle tracks.

There's one in the Musée des Arts et Métiers in Paris — blew my mind!

[^1]: https://en.wikipedia.org/wiki/Cloud_chamber

Edit: turns out people make these at home all the time. Sick!

https://dberard.com/home-built-stm/ shows individual atoms.

I tried the same with bananas. Got nothing.