Professor Rolf Maximilian Sievert (6 May 1896 - 3 October 1966) was a medical physicist whose major contribution was in the study of the biological effects of radiation.

Professor Sievert was born in Stockholm, Sweden and spent the majority of his career there.

He invented a number of instruments for measuring radiation doses, the most widely known being the Sievert chamber.

In 1979, at the Conférence Générale des Poids et Mesures (General Conference on Weights and Measures or CGPM), the unit for ionizing radiation dose equivalent was named after him and given the name sievert (Sv).

External links

• Rolf Sievert, the man and the unit