Nuclear Physics terms starting with R

11 terms

1. RAD Radiation Absorbed Dose. The basic unit of an absorbed dose of ionizing radiation.
2. Radiation (RAY-dee-AY-shun) Energy released in the form of particle or electromagnetic waves.
3. Radioactive dating A technique for estimating the age of an object by measuring the amounts of various radioisotopes in it.
4. Radioactive Waste Materials left over from making nuclear energy. Radioactive waste can living organisms if it is not stored safely.
5. Radioactivity The spontaneous decay of disintegration of an unstable atomic nucleus accompanied by the emission of radiation.
6. radioisotope (RAY-dee-oh-I-suh-tope) An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable.
7. Radionuclide (RAY-dee-oh-NOO-klide) An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable.
8. Rate meter An electronic instrument that indicates, on a meter, the number of radiation induced pulses per minute from radiation detectors such as a Geiger-Muller…
9. relative biological effectiveness (RBE) An adjustment factor used to adjust an absorbed dose to account for its relative potential to do damage in biological tissue.
10. Risk The possibility of loss; the uncertainty of future returns.
11. risk assessment a scientifically based process consisting of the following steps: i) hazard identification; ii) hazard characterization; iii) exposure assessment; and iv)…