Modelling of the Production of Source Neutrons from Low-Voltage Accelerated Deuterons on Titanium-Tritium Targets

Fast quasi-monoenergetic neutrons can be produced by accelerating charged deuterons on tritium solid targets.Benchmark experiments were performed in many laboratories with intense D-T neutron sources.The aim is to validate the computational models and nuclear data for fusion applications.The detailed information on the neutron source term is highly

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Form and formation of flares and parabolae based on new observations of the internal shell structure in lytoceratid and perisphinctid ammonoids

The ultrastructure of pristine shells of Jurassic and Cretaceous lytoceratid and perisphinctid ammonoids indicates that flares and parabolae represent homologous structures.Both mark an interruption of shell growth.We dismiss earlier interpretations of parabolae as actual aperture, relics of resorbed apophyses or superstructure of the musculature a

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