Helmuth Kulenkampff

Helmuth Kulenkampff
Born	5 December 1895
Died	12 June 1971 (1971-06-13) (aged 75)
Nationality	German
Alma mater	University of Munich
Known for	Studies of X-ray behaviour
Scientific career
Fields	Physicist
Institutions	University of Würzburg
Doctoral advisor	Ernst Wagner
Doctoral students	Elmar Zeitler

Helmuth Kulenkampff (5 December 1895 – 12 June 1971) was a physicist notable for his studies of X-rays. He obtained his PhD in 1922 under Ernst Wagner at the University of Munich with a thesis entitled: Über das Kontinuierliche Röntgenspektrum (On the continuous X-ray spectrum).

In 1937, Alfred Ehmert made the surprising observation that cosmic ray absorption in water is less than in air for same effective thickness. In 1938, Kulenkampff was the first to correctly explain this effect in terms of meson decay, and this then enabled Hans Heinrich Euler and Werner Heisenberg to calculate an improved figure for meson decay time.

References

• Laurie M. Brown and Helmut Rechenberg, The Origin of the Concept of Nuclear Forces, IOP, 1996, p. 181.

External links

• Kulenkampff's math genealogy
• Kulenkampff family connections
• An account of Kulenkampff's opposition to the Nazi X-ray gun