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{{Short description|Swedish medical physicist, professor}}
{{unreferenced|date=May 2015}}
{{more citations needed|date=May 2021}}
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{{Infobox scientist
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{{Use dmy dates|date=January 2021}}
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{{Infobox person
| name = Rolf Maximilian Sievert
| name = Rolf Maximilian Sievert
| image = Rolf Sievert 1896-1966.jpg
| image = Rolf Sievert 1896-1966.jpg
| birth_date = {{Birth date|1896|05|06|df=yes}}
| birth_date = {{Birth date|1896|05|06|df=yes}}
| birth_place = [[Stockholm]], [[Sweden]]
| birth_place = [[Stockholm]], Sweden
| death_date = {{Death date and age|1966|10|03|1896|05|06|df=yes}}
| death_date = {{Death date and age|1966|10|03|1896|05|06|df=yes}}
| death_place = Stockholm, Sweden
| death_place = Stockholm, Sweden
| alma_mater = {{Plainlist|
* [[Uppsala University]] <small>([[Bachelor of Science|B.S.]])</small>
* [[Stockholm University]] <small>([[Master of Science|M.S.]])</small>}}
| nationality = Swedish
| occupation = Medical physicist
| occupation = Medical physicist
}}
}}
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Professor '''Rolf Maximilian Sievert''' ({{IPA-sv|ˈrɔlf maksɪmˈiːlɪan ˈsiːvəʈ|lang}} 6 May 1896 &ndash; 3 October 1966) was a medical [[physicist]] whose major contribution was in the study of the biological effects of [[Ionizing radiation|radiation]].


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'''Rolf Maximilian Sievert''' ({{IPA|sv|ˈrɔlf maksɪˈmǐːlɪan ˈsǐːvɛʈ|lang}}; 6 May 1896 &ndash; 3 October 1966) was a Swedish medical [[physicist]] whose major contribution was in the study of the biological effects of [[ionizing radiation]].
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Professor 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]],{{fact|date=June 2014}}{{clarify|date=June 2014}} serving for a time as its chairman. He also chaired the [[United Nations Scientific Committee on the Effects of Atomic Radiation]].


The [[sievert]] (Sv), the [[International System of Units|SI unit]] representing the [[stochastic]] health risk of ionizing radiation, is named for him. He has been called the "Father of Radiation Protection".
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He invented a number of instruments for measuring radiation doses, the most widely known being the [[Sievert chamber]].


==Biography==
Sievert was born in [[Stockholm]], Sweden. His parents were Max Sievert and Sofia Carolina Sievert, née Panchéen.<ref name="sekiya">Sekiya, M., Yamasaki, M., "[https://doi.org/10.1007/s12194-015-0330-5 Rolf Maximilian Sievert (1896–1966): father of radiation protection]", ''Radiological Physics and Technology'', 9, 1–5 (2016). Retrieved 2 July 2021.</ref> In 1881, his father founded the Max Sievert Company in Stockholm.<ref name="sekiya" />

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Sievert served as head of the physics laboratory at Sweden's [[Radiumhemmet]] from 1924 to '37, after which he was appointed 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.

He was a founder of the International X-ray and Radium Protection Committee (IXRPC) in 1928, and served as it first chairman; this later became the [[ICRP]]. He also chaired the [[United Nations Scientific Committee on the Effects of Atomic Radiation]] (UNSCEAR).<ref name="Clarke">{{cite journal|last=Clarke|first=R.H.|author2=J. Valentin|title=The History of ICRP and the Evolution of its Policies|journal=Annals of the ICRP|year=2009|volume=39|series=ICRP Publication 109|issue=1|pages=75–110|doi=10.1016/j.icrp.2009.07.009|s2cid=71278114|url=http://www.icrp.org/docs/The%20History%20of%20ICRP%20and%20the%20Evolution%20of%20its%20Policies.pdf|access-date=12 May 2012}}</ref>

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

==Legacy==
In 1979, at the [[Conférence Générale des Poids et Mesures]] (General Conference on Weights and Measures or CGPM), the [[International System of Units|SI unit]] for ionizing radiation [[dose equivalent]] was named after him and given the name [[sievert]] (Sv).
In 1979, at the [[Conférence Générale des Poids et Mesures]] (General Conference on Weights and Measures or CGPM), the [[International System of Units|SI unit]] for ionizing radiation [[dose equivalent]] was named after him and given the name [[sievert]] (Sv).

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[[File:Rolf Sievert 1924.jpg|thumb|Rolf Sievert in 1924]]
Sievert had an extensive insect collection and his specimens can be found in the Entomological Museum of [[Lund University]] in Sweden.
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[[File:Rolf Sievert 1924.jpg|thumb|upright=1.4|Sievert in 1924]]


== See also ==
== See also ==
* [[Sievert integral]]
* [[Sievert integral]]
* [[Sievert chamber]]
* [[Sievert chamber]]
*[[International Radiation Protection Association|Rolf M. Sievert Award]]

==References==
{{Reflist}}


==External links==
==External links==
*{{Commons category-inline}}
* [http://ki.se/ki/jsp/polopoly.jsp?d=9498&a=18510&l=en Rolf Sievert, the man and the unit]
* [http://ki.se/ki/jsp/polopoly.jsp?d=9498&a=18510&l=en Rolf Sievert, the man and the unit]
* [https://link.springer.com/article/10.1007/s12194-015-0330-5 Rolf Maximilian Sievert (1896–1966): father of radiation protection]


{{Scientists whose names are used as SI units}}
{{Scientists whose names are used as SI units}}


{{Authority control}}
{{Authority control}}
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{{Use dmy dates|date=March 2013}}


{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. -->
| NAME = Sievert, Rolf Maximilian
| ALTERNATIVE NAMES =
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| SHORT DESCRIPTION = Swedish medical physicist, professor
| DATE OF BIRTH = 6 May 1896
| PLACE OF BIRTH = [[Stockholm]], [[Sweden]]
| DATE OF DEATH = 3 October 1966
| PLACE OF DEATH = Stockholm, Sweden
}}
{{DEFAULTSORT:Sievert, Rolf Maximilian}}
{{DEFAULTSORT:Sievert, Rolf Maximilian}}
[[Category:Swedish physicists]]
[[Category:Swedish physicists]]
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[[Category:1966 deaths]]
[[Category:1966 deaths]]
[[Category:Uppsala University alumni]]
[[Category:Uppsala University alumni]]
[[Category:Karolinska Institutet faculty]]
[[Category:Academic staff of the Karolinska Institute]]
[[Category:Members of the Royal Swedish Academy of Sciences]]
[[Category:Members of the Royal Swedish Academy of Sciences]]
[[Category:Members of the Royal Swedish Academy of Engineering Sciences]]
[[Category:Members of the Royal Swedish Academy of Engineering Sciences]]
[[Category:Medical physicists]]

[[Category:Units of radiation dose]]

[[Category:Radiation protection]]
{{Sweden-scientist-stub}}
{{physicist-stub}}

Latest revision as of 00:00, 4 December 2024

Rolf Maximilian Sievert
Born(1896-05-06)6 May 1896
Stockholm, Sweden
Died3 October 1966(1966-10-03) (aged 70)
Stockholm, Sweden
NationalitySwedish
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.

The sievert (Sv), the SI unit representing the stochastic health risk of ionizing radiation, is named for him. He has been called the "Father of Radiation Protection".

Biography

[edit]

Sievert was born in Stockholm, Sweden. His parents were Max Sievert and Sofia Carolina Sievert, née Panchéen.[1] In 1881, his father founded the Max Sievert Company in Stockholm.[1]

Sievert served as head of the physics laboratory at Sweden's Radiumhemmet from 1924 to '37, after which he was appointed 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.

He was a founder of the International X-ray and Radium Protection Committee (IXRPC) in 1928, and served as it first chairman; this later became the ICRP. He also chaired the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR).[2]

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

Legacy

[edit]

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).

Sievert had an extensive insect collection and his specimens can be found in the Entomological Museum of Lund University in Sweden.

Sievert in 1924

See also

[edit]

References

[edit]
  1. ^ a b Sekiya, M., Yamasaki, M., "Rolf Maximilian Sievert (1896–1966): father of radiation protection", Radiological Physics and Technology, 9, 1–5 (2016). Retrieved 2 July 2021.
  2. ^ Clarke, R.H.; J. Valentin (2009). "The History of ICRP and the Evolution of its Policies" (PDF). Annals of the ICRP. ICRP Publication 109. 39 (1): 75–110. doi:10.1016/j.icrp.2009.07.009. S2CID 71278114. Retrieved 12 May 2012.
[edit]
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