Siegfried Niese

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Siegfried Niese (2004)

Siegfried Niese (born October 23, 1932 in Riesa , actually Karl Siegfried Niese ) is a German professor of chemical analysis .

Life

Siegfried Niese studied after high school from 1951 to 1956 at the University of Leipzig Chemistry , where he also with a work for the extraction of thorium nitrate in 1959 received his doctorate . From 1956 to 1991 he was at the Central Institute for Nuclear Research Rossendorf and then until 1999 at the Association for Nuclear Process Engineering and Analytics. V. in Rossendorf and worked until 1959 on the reprocessing of irradiated nuclear fuels and then in the field of radiochemical analysis. In 1972 he completed his habilitation at the TU Dresden with a thesis on trace analysis of semiconductor silicon for Dr. sc. nat., was appointed professor by the Academy of Sciences of the GDR in 1980 and taught at the TU Dresden and the Bergakademie Freiberg . Siegfried Niese, head of the Radiochemical Analysis Section of the Chemical Society, initiated four international conferences on nuclear analysis methods in Dresden and several national conferences in Dresden.

Siegfried Niese is married to Ursula Niese (née Friederici), who has a doctorate in chemistry, and they have three children.

Research work

The starting point of the research was the interest of institutes, clinics and companies in the determination of trace elements and radionuclides in pure substances, geological and biological materials, materials and media from nuclear power plants and environmental samples. For the analysis of high-purity silicon , the detection capacity of the activation analysis has been improved by means of new coincidence measurement methods and their implementation in an underground measurement laboratory. In the laboratory, where optimal conditions for measuring gamma rays or alpha , beta rays and neutrons were given in two measuring chambers with different combinations of shielding materials , measurements of low radioactivities in meteorites and environmental samples were also carried out.

When Siegfried Niese retired, he mainly devoted himself to the history of science . In addition to the biographical work on the founder of his field of work, Georg von Hevesy , he has written book chapters and articles on a number of other scientists and described personalities and sights for his hometown.

Web links

Individual evidence

  1. ^ Siegfried Niese, Manfred Beer, Dieter Naumann, Ralf Köpsel: Extractive processing of irradiated nuclear fuels. Berlin: Akademie Verlag 1960.
  2. ↑ Gerd Pfrepper, Wolf Görner, Siegfried Niese: Trace element determination through neutron activation. Leipzig: Geest & Portig 1981.
  3. ^ S. Niese, L. Pfeiffer, B. Gleisberg: Geochemistry of Saxon tertiary agmatites. In: Journal of Geological Sciences . Volume 23, No. 3, Berlin 1995, pp. 1-6.
  4. ^ S. Niese: Application of multi-sample beta-gamma coincidence spectroscopy for high sensitive activation analysis. In: Journal of Radioanalytical and Nuclear Chemistry . Volume 88, 1985, pp. 7-12, doi: 10.1007 / BF02037299 .
  5. ^ S. Niese, W. Helbig: Detection Limits in Activation Analysis Using Ge (Li) -Detectors Installed in an Underground Laboratory. In: Journal of Radioanalytical and Nuclear Chemistry. Volume 100, 1986, pp. 155-163, doi: 10.1007 / BF02036509 .
  6. ^ S. Niese, M. Koehler, Birgit Gleisberg: Low-level counting techniques in the underground laboratory "Felsenkeller" in Dresden. In: Journal of Radioanalytical and Nuclear Chemistry. Volume 233, 1998, pp. 167-172, doi: 10.1007 / BF02389666 .
  7. ^ S. Niese: Underground Laboratories for low-level radioactivity measurements. In: PP Povinec: Analysis of Environmental Radionuclides. Amsterdam 2008.
  8. ↑ S. Niese: Georg von Hevesy - Scientists Without Borders. Munster 2009.
  9. ^ S. Niese: The great moment of the natural sciences: The Nobel Laureate Spemann - Hevesy - Krebs - Staudinger and their political-social environment. In: 550 years of the Albert Ludwig University of Freiburg. Festschrift. Volume 3, pp. 295-279.
  10. ↑ S. Niese: Moth balls for the detection of nuclear radiation: Hartmut Kallmann (1896–1978) and the organic scintillators. In: Mitt. Fachgr. History of chemistry at the GDCh. No. 20, 2009, pp. 116-136.
  11. ^ S. Niese: Bergrat Gottfried Pabst von Ohain. Heimathefte Mohorn / Grund, Heft 4, 2014, and Der Porphyrfächer in Mohorn-Grund. Issue 5, 2014.
personal data
SURNAME Sneeze, Siegfried
BRIEF DESCRIPTION German chemist and university professor
DATE OF BIRTH October 23, 1932
PLACE OF BIRTH Riesa , Saxony