making a XRF gun
I know that its probably quite impossible to slap one together using an Arduino or something but is this completely out of the realm of DIY?
Really they just break down into 4 parts: X-ray source, detector, electronics and computer and it seems like the first two are the issue.
It seems like there's tons of different methods of doing this, and I just keep feeling that somewhere in all those is something much more cost effective.
Here are some links: