It's things like this that remind me there's always a little more to discover. I've built a number of those SBM20 geiger counters but I've never come across thi

It's things like this that remind me there's always a little more to discover. I've built a number of those SBM20 geiger counters but I've never come across this muon detector design before. Seems to be a pretty well known design: * https://www.hackster.io/jdpetrey/muon-detector-23bb72 https://www.hackster.io/jdpetrey/muon-detector-23bb72 * https://www.madexp.it/2024/11/19/muon-and-geiger-counter/ https://www.madexp.it/2024/11/19/muon-and-geiger-counter/ * https://iopscience.iop.org/article/10.1088/0031-9120/50/3/317 https://iopscience.iop.org/article/10.1088/0031-9120/50/3/31... Pro tip - not all the SBM-20 tubes on Ebay are created equal! Some sellers will happily sell you tubes that are shorted, open, or just don't work. The better ones test their tubes.