F. Lübke
University of Bonn
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Featured researches published by F. Lübke.
Zeitschrift f�r Physik A: Atoms and Nuclei | 1976
P. David; J. Debrus; H. Essen; F. Lübke; H. Mommsen; R. Schoenmackers; W. Soyez; H. V. v. Geramb; E. F. Hefter
AbstractThe angular distributions of the elastic4He-scattering on208Pb and the elastic and inelastic4He-scattering on232Th and234,236,238U at
Nuclear Physics | 1974
P. David; J. Debrus; F. Lübke; H. Mommsen; R. Schoenmackers; Gotthard Stein
Nuclear Physics | 1976
Neos Mohammed Bachschi; P. David; J. Debrus; F. Lübke; H. Mommsen; R. Schoenmackers; G.G. Jonsson; K. Lindgren
E_{4_{He} } = 50 MeV
Physics Letters B | 1976
P. David; J. Debrus; F. Lübke; H. Mommsen; E. Schmitt; R. Schoenmackers; H. Simons
European Physical Journal A | 1976
F. Zu Bentheim; P. David; J. Debrus; F. Hinterberger; Robert G. Jahn; F. Lübke; H. Mommsen; R. Schoenmackers; B. Schuller
were measured between 20° and 60°. The4He-particles were detected with a position sensitive detector in the focal plane of a split-pole spectrograph. The aim was to get data to determine the deformation parameters of the equilibrium states by coupled channels calculations.
Physics Letters B | 1976
P. David; J. Debrus; F. Lübke; H. Mommsen; R. Schoenmackers
Abstract The target nuclei 27Al, 40, 44Ca, 51V, 59Co, 93Nb, natAg, 181Ta and 197Au were irradiated with bremsstrahlung of Eγmax = 450 MeV. Protons, tritons, 3He and 4He particles were detected on-line with an identification system using surface barrier detectors. Energy spectra, yields and angular distributions are given. The energy spectra are compared with calculated spectra from the compound nucleus model.
Physics Letters B | 1978
P. David; J. Debrus; F. Lübke; R. Schoenmackers; J. Schulze
Abstract Yields and isomeric yield ratios of nuclei produced in the irradiation of 45 Sc and nat Cu with bremsstrahlung of E γ max = 2 GeV have been measured by the activation method. The experimental yields are compared to predictions with a Rudstam formula modified to photonuclear reactions.
Archive | 1977
P. David; Neos Mohammed Bachschi; J. Debrus; Ung Kim; Gerfried J. Kumbartzki; F. Lübke; Theo Mayer-Kuckuk; H. Mommsen; R. Schoenmackers; Karl Heinz Speidel; Gotthard Stein
Abstract Mass and energy distributions of 238 U fragments following fission induced by inelastic scattering of α-particles were obtained in a triple coincidence experiment. The total kinetic energy (TKE) of the fragments is observed to decrease with excitation energy.
Archive | 1977
P. David; Neos Mohammed Bachschi; J. Debrus; Ung Kim; Gerfried J. Kumbartzki; F. Lübke; Theo Mayer-Kuckuk; H. Mommsen; R. Schoenmackers; Karl Heinz Speidel; Gotthard Stein
Experimental data of the elastic scattering ofα-particles on10B forEα = 30−50.6 MeV are presented. They are analysed together with the data of a previous measurement forEα = 5−30 MeV in the frame of the optical model including spin-orbit coupling. The interaction radii of theα-10B-systems are determined with the Inopin-Ericson model forEα = 5−50 MeV. The mean free path ofα-particles in10B is calculated.
Archive | 1977
P. David; Neos Mohammed Bachschi; J. Debrus; Ung Kim; Gerfried J. Kumbartzki; F. Lübke; Theo Mayer-Kuckuk; H. Mommsen; R. Schoenmackers; Karl Heinz Speidel; Gotthard Stein
Abstract The variation in the mass yield distribution of the spontaneous fission of 252 Cf as a function of the total kinetic energy (TKE) of the two fragments is investigated. With increasing TKE the peaks of the mass yield distributions become narrower.