Hans Henrik Andersen (May 1, 1937 in Frederiksberg, Denmark – November 3, 2012) was a professor at the Niels Bohr Institute at the University of Copenhagen (emeritus since 2004).[1] He was the founder and subsequently co-editor of the scientific journal "Nuclear Instruments and Methods in Physics Research B".
He has made important contributions to various fields of atomic physics and solid state physics, especially in the field of the stopping power of matter for fast charged particles. The accuracy (0.3–0.5%) of his measurements is unsurpassed even today (2006). They were done by measuring the amount of heat deposited in a foil at the temperature of liquid helium (−269 °C).
Together with his collaborators, he succeeded in showing in 1969 that the stopping power for fast alpha particles is more than four times as large as that for protons. Since the atomic number (Z) of alpha particles is exactly twice as big as that of protons, that means that the stopping power is not exactly proportional to Z2, as the simple Bethe formula would have it. That was an additional proof of the existence of the Barkas effect.
^Sigmund, Peter (2012). "Hans Henrik Andersen". Physics Today. Archived from the original on 16 June 2013. Retrieved 12 December 2012.
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HansHenrikAndersen (May 1, 1937 in Frederiksberg, Denmark – November 3, 2012) was a professor at the Niels Bohr Institute at the University of Copenhagen...
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philosopher Henrik Steffens. Key contributors were Adam Oehlenschläger, Bernhard Severin Ingemann, N. F. S. Grundtvig and Hans Christian Andersen—the proponent...
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Region of Southern Denmark. Odense has close associations with Hans Christian Andersen who is remembered above all for his fairy tales. He was born in...
semi-postal) Michael Ancher (1996) Hans Christian Andersen (1935) Ib Andersen (1991) Mogens Andersen (1998) Valdemar Andersen (1991) Anne-Marie of Denmark Queen...
Laszlo Szatmari Steffen Andersen Rune Sola Jernej Kolenko Tomasz Bajerski Holsted Nicki Pedersen Niels Kristian Iversen Henrik Møller Patrick Hougaard...
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