Kai (kaɪ). 1918–2007, Swedish physicist who worked on electron spectroscopy: Nobel prize for physics 1981
2.
his father, Karl Manne Georg (kɑːrl ˈmanə ˈjeːɔrj). 1886–1978, Swedish physicist, who discovered the M series in X-ray spectroscopy: Nobel prize for physics 1924
Siegbahn in American English
(ˈsiɡbɑːn)
noun
Karl Manne Georg (kɑːʀl ˈmɑːnnə ˈjeiɔʀjᵊ) 1886–1978, Swedish physicist: Nobel prize 1924