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・ Helmuth Ellgaard
・ Helmuth Fischer
・ Helmuth Friedrichs
・ Helmuth Förster
・ Helmuth Gericke
・ Helmuth Gräff
・ Helmuth Hennig
・ Helmuth Holzinger
・ Helmuth Hufenbach
・ Helmuth Huffmann
・ Helmuth Hübener
・ Helmuth James Graf von Moltke
・ Helmuth Johannsen
・ Helmuth Kahl
・ Helmuth Koinigg
Helmuth Kulenkampff
・ Helmuth Lehner
・ Helmuth Lohner
・ Helmuth Ludwig
・ Helmuth Luik
・ Helmuth M. Backhaus
・ Helmuth Markov
・ Helmuth Naudé
・ Helmuth Naumer
・ Helmuth Nyborg
・ Helmuth Orthner
・ Helmuth Plessner
・ Helmuth Prieß
・ Helmuth Prieß (soldier)
・ Helmuth Raithel


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Helmuth Kulenkampff : ウィキペディア英語版
Helmuth Kulenkampff

Helmuth Kulenkampff 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 comic 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.

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