Building a DIY Muon Tomography Device for About $100
1 min read
Summary
Muon tomography, also known as muography, is analogous to using X-rays, but uses muons created by cosmic rays interacting with a planet’s atmosphere.
Instead of purchasing expensive, dedicated muon detectors, two Geiger-Muller tubes can be used along with associated circuitry for about $100 to build a muon detector.
This works because only muons, due to their higher kinetic energy, can pass through both tubes, while other radiation is filtered out; this is also used to identify the direction from which the muons are coming.
In testing, a detector was used to identify differences in muon density based on whether there was more rock or a void, such as a mine shaft.
While not quick or easy, the low cost and entertainment value make it a uniquely interesting option for exploring structures and geology.
