Which radioactive isotope can be used to detect cracks or flaws in metal components?
- Aamericium-241, an alpha emitter with a half-life of 432 years
- Bcobalt-60, a gamma emitter with a half-life of 5 years
- Cradium-223, an alpha emitter with a half-life of 11 days
- Dbarium-137, a gamma emitter with a half-life of 3 minutes