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Radiation Protection Glossary

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Radiation weighting factor
The Radiation Weighting Factor is used to modify the Absorbed Dose (Gray ) by multiplying to obtain a quantity called the Equivalent Dose (Sv ). It is defined by the ICRP and used because some types of radiation, such as Alpha Particles , are more biologically damaging internally than other types such as the Beta Particle . The factor is similar to the Quality Factor determined by the US Nuclear Regulatory Commission (NRC).