Rolf Maximilian Sievert

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Rolf Maximilian Sievert
Rolf Sievert 1896-1966.jpg
Born(1896-05-06)6 May 1896
Died3 October 1966(1966-10-03) (aged 70)
Stockholm, Sweden
Alma mater
OccupationMedical physicist

Rolf Maximilian Sievert (Swedish: [ˈrɔlf maksɪˈmǐːlɪan ˈsǐːvɛʈ]; 6 May 1896 – 3 October 1966) was a Swedish medical physicist whose major contribution was in the study of the biological effects of ionizing radiation.

Sievert was born in Stockholm, Sweden. He served as head of the physics laboratory at Sweden's Radiumhemmet from 1924 to 1937, when he became head of the department of radiation physics at the Karolinska Institute. He played a pioneering role in the measurement of doses of radiation especially in its use in the diagnosis and treatment of cancer. In later years, he focused his research on the biological effects of repeated exposure to low doses of radiation. In 1964, he founded the International Radiation Protection Association,[citation needed][clarification needed] serving for a time as its chairman. He also chaired the United Nations Scientific Committee on the Effects of Atomic Radiation.

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 SI unit for ionizing radiation dose equivalent was named after him and given the name sievert (Sv).

He also had an extensive insect collection and his specimens can be found in Entomological Museum of Lund University.

Rolf Sievert in 1924

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