
US Scientists Develop Miniature Crystal Sensor to Measure Extreme Fusion Magnetic Fields
Researchers at Sandia National Laboratories have developed a laser-based miniature rare-earth garnet crystal sensor capable of accurately measuring strong magnetic fields in harsh environments — including intense radiation, electromagnetic interference, and fusion plasma. The technology holds promise for advancing diagnostics in future nuclear fusion power plants, has been patented, and is a finalist for the 2026 R&D 100 Award.
Source: Interesting Engineering










