• Publications
  • Influence
Chemical characterization of bohrium (element 107)
The arrangement of the chemical elements in the periodic table highlights resemblances in chemical properties, which reflect the elements’ electronic structure. For the heaviest elements, however,Expand
  • 101
  • 3
Evidence for relativistic effects in the chemistry of element 104
Abstract On the basis of thermodynamic extrapolations, the first transactinide element 104 (Rf=rutherfordium 1 ) is expected to form volatile tetrachlorides of lower volatility than those of theExpand
  • 18
  • 3
48Ca+249Bk fusion reaction leading to element Z = 117: long-lived α-decaying 270Db and discovery of 266Lr.
The superheavy element with atomic number Z=117 was produced as an evaporation residue in the (48)Ca+(249)Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. TheExpand
  • 93
  • 3
  • PDF
Production and decay of element 114: high cross sections and the new nucleus 277Hs.
The fusion-evaporation reaction 244Pu(48Ca,3-4n){288,289}114 was studied at the new gas-filled recoil separator TASCA. Thirteen correlated decay chains were observed and assigned to the productionExpand
  • 133
  • 1
  • PDF
Observation of the 3n evaporation channel in the complete hot-fusion reaction 26Mg + 248Cm leading to the new superheavy nuclide 271Hs.
The analysis of a large body of heavy ion fusion reaction data with medium-heavy projectiles (6 < or = Z < or = 18) and actinide targets suggests a disappearance of the 3n exit channel withExpand
  • 79
  • 1
Doubly magic nucleus (108)(270)Hs162.
Theoretical calculations predict 270Hs (Z=108, N=162) to be a doubly magic deformed nucleus, decaying mainly by alpha-particle emission. In this work, based on a rapid chemical isolation of HsExpand
  • 59
In situ synthesis of volatile carbonyl complexes with short-lived nuclides
Rapid in situ formation of metal carbonyl complexes with short-lived nuclides has been demonstrated to be feasible with recoiling ions formed in nuclear fusion and fission reactions. These carbonylExpand
  • 10
The new isotope 236Cm and new data on 233Cm and 237, 238, 240Cf
Abstract.The isotopes 237, 238, 240Cf were produced in irradiations of 204, 206, 207Pb targets with 36S ions. At bombarding energies close to the Coulomb barrier two or three neutrons were evaporatedExpand
  • 13
Average charge states of heavy and superheavy ions passing through a rarified gas : Theory and experiment
The average charge states (q) over bar of heavy and superheavy ions (atomic numbers Z = 80-114) passing through He gas are studied experimentally and theoretically. Experimental data were measured atExpand
  • 13
  • PDF
Cross section limits for the Cm248(Mg25,4n-5n)Hs268,269 reactions
We report on an attempt to produce and detect {sup 268}Hs and {sup 269}Hs in the nuclear fusion reaction {sup 25}Mg+{sup 248}Cm using the gas phase chemistry apparatus COMPACT. No decay chainsExpand
  • 5