Biography:Kai Siegbahn

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Kai Siegbahn
Siegbahn in 1981
Born
Kai Manne Börje Siegbahn

(1918-04-20)20 April 1918
Lund, Skåne County, Sweden
Died20 July 2007(2007-07-20) (aged 89)
Ängelholm, Skåne County, Sweden
Alma mater
Known forX-ray photoelectron spectroscopy
Spouse(s)
Anna Brita Rhedin (m. 1944)
Children3
Awards
  • Björkén Prize (1955, 1977)
  • Nobel Prize in Physics (1981)
Scientific career
FieldsPhysics
Institutions
  • Royal Institute of Technology (1951–1954)
  • Uppsala University (1954–1984)

Kai Manne Börje Siegbahn (20 April 1918 – 20 July 2007) was a Swedish physicist who shared the 1981 Nobel Prize in Physics.

Biography

Kai Manne Börje Siegbahn was born on 20 April 1918 in Lund, Sweden, the son of physicist Manne Siegbahn and Karin Högbom.

From 1936 to 1942, Siegbahn studied physics, mathematics, and chemistry at Uppsala University.[1] He received his Ph.D. in Physics from Stockholm University in 1944. Siegbahn was a professor at the Royal Institute of Technology in Stockholm from 1951 to 1954. He joined Uppsala University in 1954, where he remained until his retirement in 1984.[2] He was also President of the International Union of Pure and Applied Physics from 1981 to 1984.

In 1981, Siegbahn was awarded the Nobel Prize in Physics jointly with Nicolaas Bloembergen and Arthur Schawlow. Siegbahn received half of the Prize "for his contribution to the development of high-resolution electron spectroscopy."[3] He referred to his technique as Electron Spectroscopy for Chemical Analysis (ESCA); it is now usually known as X-ray photoelectron spectroscopy (XPS). In 1967, he published a book, ESCA; atomic, molecular and solid state structure studied by means of electron spectroscopy.[4]

Siegbahn married Anna Brita Rhedin in 1944. The couple had three sons: Per (born 1945), Hans (born 1947), and Nils (born 1953).[1][5]

Siegbahn died on 20 July 2007 at the age of 89.[6] At the time of his death, he was still active as a scientist in the Ångström Laboratory at Uppsala University.[5]

Recognition

Awards

Year Organization Award Citation Ref.
1955 Sweden Uppsala University Björkén Prize[lower-alpha 1] — [7]
1977 Sweden Uppsala University Björkén Prize — [7]
1981 Sweden Royal Swedish Academy of Sciences Nobel Prize in Physics[lower-alpha 2] "For his contribution to the development of high-resolution electron spectroscopy." [3]

Honorary degrees

Year University Degree Ref.
1972 United Kingdom Durham University Doctor of Science [8]

Memberships

Year Organization Type Ref.
1978 United States American Academy of Arts and Sciences International Honorary Member [9]
1983 United States National Academy of Sciences International Member [10]
1985 Vatican City Pontifical Academy of Sciences Academician [11]
1989 Academia Europaea Member [12]

Notes

  1. ↑ Awarded jointly with Hilding Köhler.
  2. ↑ Awarded jointly with Nicolaas Bloembergen and Arthur Schawlow.

References

  1. ↑ 1.0 1.1 "Kai Siegbahn - Curriculum Vitae". Nobel Foundation (From Nobel Lectures, Physics 1981-1990, Editor-in-Charge Tore Frängsmyr, Editor Gösta Ekspong, World Scientific Publishing Co., Singapore, 1993). https://www.nobelprize.org/prizes/physics/1981/siegbahn/26284-curriculum-vitae/. 
  2. ↑ "Kai Manne Börje Siegbahn". Encyclopædia Britannica. 2025-07-16. https://www.britannica.com/biography/Kai-Manne-Borje-Siegbahn. Retrieved 2026-03-17. 
  3. ↑ 3.0 3.1 "Nobel Prize in Physics 1981". Nobel Foundation. https://www.nobelprize.org/prizes/physics/1981/summary. 
  4. ↑ "Kai Siegbahn - Nobel lecture: Electron Spectroscopy for Atoms, Molecules and Condensed Matter". Nobel Foundation. 8 December 1981. https://www.nobelprize.org/uploads/2018/06/siegbahn-lecture-1.pdf. 
  5. ↑ 5.0 5.1 Magdolna Hargittai (January 2022). "Kai M. Siegbahn (1918‒2007): a pioneer in high-resolution electron spectroscopy". Structural Chemistry 33: 307–310. doi:10.1007/s11224-021-01865-0. 
  6. ↑ Jeremy Pearce (7 August 2007). "Kai Siegbahn, Swedish Physicist, Dies at 89". The New York Times. https://www.nytimes.com/2007/08/07/world/europe/07siegbahn.html. 
  7. ↑ 7.0 7.1 "The Björkén Prize". Uppsala University. https://www.uu.se/en/about-uu/academic-traditions/traditions/the-bjorken-prize. 
  8. ↑ "Honorary Degrees". http://www.dur.ac.uk/resources/university.calendar/volumei/current/honorary_degrees.pdf. 
  9. ↑ "Kai Manne Borge Siegbahn". https://www.amacad.org/person/kai-manne-borge-siegbahn. 
  10. ↑ "Kai Siegbahn". https://www.nasonline.org/directory-entry/kai-siegbahn-epqmzs/. 
  11. ↑ "Kai Manne Börje Siegbahn". https://www.pas.va/en/academicians/deceased/siegbahn.html. 
  12. ↑ "Kai Siegbahn". https://www.ae-info.org/ae/Member/Siegbahn_Kai. 
  • Miss nobel-id as parameter



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