Bertram Blank (physicist)

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Bertram Blank is a German experimental nuclear physicist.

Blank received his doctorate in 1991 at the TU Darmstadt with a dissertation prepared at the GSI Darmstadt ( isotope separation of relativistic projectile fragments and cross-sectional measurements of 8,9,11Li secondary beams ). He then went to Bordeaux, where he did research at the Center d'études nucléaires Bordeaux Gradignan (CENBG) for the CNRS as Research Director. He also did research at GANIL . He is the spokesman for the DESIR facility (Disintegration, Excitation and Storage of Radioactive Ions) at GANIL. He is also a member of the GSI.

He studies exotic cores far from stability. In 1999 he discovered the double-magic nucleus Nickel 48 (with proton number 28, neutron number 20) and in 2002 decays with emission of two protons , a new form of radioactivity. It was observed on iron 45 (with 26 protons and 19 neutrons, i.e. 11 less than the most common iron isotope iron 56), which was formed by bombarding nickel with nickel 58. The two-proton decay was independently observed at the same time at GSI. Previously only decays with emission of one proton had been observed in nuclei with an odd number of protons. The new decay mechanism also points to pairing forces (Cooper pairs) in heavy nuclei with an even number of protons or neutrons. The half-life was 4 milliseconds, significantly longer than the two-proton decays previously observed at the Oak Ridge National Laboratory on Neon 18 with half-lives in the order of seconds. The type of decay had already been predicted in 1960 by Vitaly Iossifowitsch Goldanski .

In 1996 he received the bronze medal and in 2004 the silver medal of the CNRS. In 2002 he received the Prix Thibaud from the Lyon Academy.

Web links

Individual evidence

  1. ^ Theses at Charms / GSI
  2. ↑ members CENBG
  3. ↑ Bertram Blank u. a., Discovery of Doubly Magic 48Ni, Physical Review Letters, Vol. 84, 2000, pp. 1116-1119
  4. ↑ Jérôme Giovinazzo, Bertram Blank a. a., Two-Proton Radioactivity of 45 Fe, Physical Review Letters, Volume 89, 2002, p. 102501
  5. ↑ M. Pfützner u. a., European Physical Journal A, Volume 14, 2002, p. 279
  6. ^ Nuclei reveal novel decay , Physics World, September 16, 2002
  7. ↑ Bertram Blank, Researchers observe two proton radioactivity , CERN Courier, December 1, 2002
personal data
SURNAME Blank, Bertram
BRIEF DESCRIPTION Nuclear physicist
DATE OF BIRTH 20th century