At high-altitude research facilities, personnel are monitored for exposure to ionizing radiation.
Identify one natural source of background radiation whose intensity is significantly increased at high altitudes, and one artificial (man-made) source of background radiation commonly encountered in clinical diagnostics or industrial testing.
81 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.