Low-background steel

Low-background steel is a special kind of steel that comes from a place where there is not much radioactive material. Radioactive material is like little particles that can give off energy, and too much of it can be dangerous. Low-background steel is important for things like scientific experiments and medical tools, because it doesn't interfere with the measurements or cause harm to people. It is made by finding places where the ground and rocks don't have much radioactive material, and then melting down regular steel and adding in things like copper and manganese to make it extra clean. This way, it can be used safely and accurately for important purposes.