1. Introduction2. Basic concepts3. Isotopes4. Radioactive decay5. Interaction of radiation with matter6. Nuclear reactions7. Nuclear energy production8. Radioactive tracer methods9. Physicochemical application of radiotracer methods10. Radio- and nuclear analysis11. Industrial application of radioisotopes (Lajos Baranyai)12. An Introduction to Nuclear Medicine (József Varga)13. Environmental radioactivity14. Detection and measurement of radioactivity