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  • 1
    Online Resource
    Online Resource
    Abschlussbericht zum Projekt 06FY159D und 06ER142D: GSI-SHIPTRAP: Schwerste Elemente - selbstkonsistente Kernmodelle (2009)
    Erlangen [u.a.]
    Details Availability
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: Online-Ressource (13 S., 142 KB) , graph. Darst.
    URL: https://edocs.tib.eu/files/e01fb11/644502266.pdf
    URL: https://doi.org/10.2314/GBV:644502266
    URL: https://edocs.tib.eu/files/e01fb11/644502266l.pdf
    DOI: 10.2314/GBV:644502266
    Language: German
    Note: Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden , Auch als gedr. Ausg. vorhanden , Systemvoraussetzungen: Acrobat reader.
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  • 2
    Online Resource
    Online Resource
    Selbstkonsistente Beschreibung von Grundzustand und Dynamik exotischer Kerne : Bericht zum Projekt 06 ER 927 (2002)
    Erlangen : Inst. für Theoretische Physik, Friedrich-Alexander-Univ. [u.a.]
    Details Availability
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: Online-Ressource (11 p., 181 Kb.) , graphs
    Edition: [Elektronische Ressource]
    URL: https://edocs.tib.eu/files/e01fb02/345623487.pdf
    URL: https://edocs.tib.eu/files/e01fb02/345623487l.pdf
    Language: German
    Note: Differences between the printed and electronic version of the document are possible. - nBibliography p. 8 - 11 , Also available as printed version , Systemvoraussetzungen: Acrobat Reader.
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  • 3
    Online Resource
    Online Resource
    Computational Nuclear Physics 2 : Nuclear Reactions. (1993)
    New York, NY :Springer,
    Details
    Keywords: Nuclear physics-Data processing. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (216 pages)
    Edition: 1st ed.
    ISBN: 9781461393351
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6499003
    Language: English
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  • 4
    Electronic Resource
    Electronic Resource
    Hydrodynamic instability of shells accelerated by direct ion beam heating (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 9 (2002), S. 1348-1356 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The Rayleigh–Taylor (RT) instability of planar shells accelerated by direct heating of an underlying absorber layer is analyzed. A specific feature of the problem considered is a fixed in space energy deposition region, which allows the unstable transition layer to develop only gradually as the heated matter is pushed out of the deposition region. The linear growth spectrum ω(k) is investigated by relating a simple analytic estimate for a stationary exponential transition layer with the results of two-dimensional hydrodynamic simulations. For the unperturbed motion, an analytic solution is used which describes a uniform acceleration of the payload driven by a time-dependent uniform heating of the absorber with a fixed spatial extension. It is shown that an enhancement factor of 1.5(h/d), where h is the effective half-thickness of the heated region and d is the in-flight thickness of the payload, can be achieved for the distance-moved-over-thickness ratio as compared to the classical RT case of a strong density jump. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1462634
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  • 5
    Electronic Resource
    Electronic Resource
    Inertial confinement fusion using hohlraum radiation generated by heavy-ion clusters (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 796-816 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper discusses the feasibility of employing heavy-ion cluster beams to generate thermal radiation that can be used to drive inertial fusion capsules. The low charge-to-mass ratio of a cluster may allow the driver beam to be focused to a very small spot size with a radius of the order of 100 μm, while the low energy per nucleon (of the order of 10 keV) may lead to a very short range of the driver particles in the converter material. This would result in high specific power deposition that may lead to a very high conversion efficiency. The problem of cluster stopping in cold matter, as well as in hot dense plasmas has been thoroughly investigated. The conversion efficiency of cluster ions using a low-density gold converter has also been calculated over a wide range of parameters including converter density, converter geometry, and specific power deposition. These calculations have been carried out using a one-dimensional hydrodynamic computer code that includes a multigroup radiation transport scheme [Ramis et al., Comput. Phys. Commun. 49, 475 (1988)]. The problem of symmetrization of this radiation field in a hohlraum with solid gold walls has also been thoroughly investigated using a three-dimensional view factor code. The characteristics of the radiation field obtained by this study are used as input to capsule implosion calculations that are done with a three-temperature radiation-hydrodynamic computer code MEDUSA-KAT [Tahir et al., J. Appl. Phys. 60, 898 (1986)]. A reactor-size capsule which contains 5 mg deuterium–tritium (DT) fuel is used in these calculations. The problem of using a fuel mixture with a substantially reduced tritium content has also been discussed. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872174
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  • 6
    Electronic Resource
    Electronic Resource
    Three-dimensional calculations on the formation of density isomers in high energy heavy ion collisions (1979)
    Springer
    The European physical journal 290 (1979), S. 297-300 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A three dimensional fluid dynamical model is used to investigate the possibility of forming superdense abnormal nuclear matter (“density isomers”) in fast collisions of heavy nuclei, the dependence of the formation process on the bombarding energy and on the impact parameter. An experiment for the detection of such phase transitions in nuclear matter is suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408546
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  • 7
    Electronic Resource
    Electronic Resource
    Medium energy collisions of heavy nuclei in the three-dimensional nuclear fluid dynamical-(NFD) and Time-Dependent Hartree-Fock (TDHF) models (1980)
    Springer
    The European physical journal 294 (1980), S. 125-135 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study heavy ion collisions at bombarding energiesE LAB/n∼ 20–200 MeV within the three-dimensional NFD- and TDHF-models. A surprisingly good agreement between the results of the different models is found: The comparison phenomena occuring at these bombarding energies are quantitatively similar as a function of the bombarding energy as well as for various impact parameters. The formation of abnormal superdense nuclear matter (“density isomers”) is investigated in a schematic model for the nuclear equation of state. Again we find very similar results in the two models. Density isomers can be formed in high energy heavy ion collisions above a critical bombarding energy and below a critical impact parameter, which both depend on the details of the nuclear equation of state. Cross sections for the formation of density isomers are presented. An experiment for the detection of abnormal nuclear matter in fast, central heavy ion collisions is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01435047
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  • 8
    Electronic Resource
    Electronic Resource
    Fusion-fission, superheavy molecular-capture and symmetric fragmentation in 3D-TDHF calculations of the reactions238U,208Pb(4.6-8.0MeV/u)64Ni,48Ca (1982)
    Springer
    The European physical journal 306 (1982), S. 235-238 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In 3D-TDHF calculations of heavy asymmetric nuclear collisions we find four classes of reactions. At low impact parameters the system captures, whereas at large impact parameters deep inelastic collisions occur. For differentE Lab,L in and mass asymmetries this leads to(i) strong drift to symmetry with later fragmentation,(ii) formation of long-lived very-heavy nuclear molecules or(iii) fusion and slow drift to sphericity. The calculated capture cross-sections vs.E Lab are consistent with recent data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01415125
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  • 9
    Electronic Resource
    Electronic Resource
    A three-center shell model for ternary fission (1979)
    Springer
    The European physical journal 290 (1979), S. 205-212 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We propose a generalization of the phenomenological shell model based on the harmonic oscillator potential with spin-orbit term andl 2-corrections to systems made up of three clusters. The centers of these may be in arbitrary geometrical configurations and the clusters may be of different masses. The method of determining the eigenstates of the single-particle Hamiltonian is sketched and results for the cluster structure of light nuclei and the ternary fission of a superheavy system are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408116
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  • 10
    Electronic Resource
    Electronic Resource
    Strong compression effects in fast nuclear collisions (1979)
    Springer
    The European physical journal 293 (1979), S. 173-179 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The importance of the impact parameter for compression effects and the reaction mechanism in high energy heavy ion collisions (HEHIC) are investigated within three-dimensional nuclear fluid dynamics. For central collisions of a small projectile (Ne) with a heavy target (U) a Mach shock wave is formed resulting in the sidewards emission of matter with azimuthally symmetric fragment distribution. At intermediate impact parameters the Highly-Inelastic Bounce-Off (HIBO) appears, where the large compression potential leads to the sidewards deflection of the projectile, which then explodes. A large collective transverse momentum transfer to the target leads to azimuthally asymmetric (180° correlated) fragment distributions. The deflection angles, energy losses, mean associated multiplicities as well as the maximum compression and thermal excitation of the system are calculated as a function of the impact parameter. A characteristic deflection function is obtained which may be used to determine the impact parameter in HEHI collisions experimentally. The influence of the nuclear equation of state is discussed. The strongly differing results of central reactions and those at intermediate impact parameter seem to have been observed in preliminary data of the GSI-Marburg-LBL collaboration. This is viewed as further indication for the occurrence of strong compression phenomena in nucleus-nucleus collisions of high energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01559758
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