Diffusion von Thorium X

Enhanced diffusion of Uranium and Thorium linked to crystal plasticity in zircon

The effects of crystal-plasticity on the U-Th-Pb system in zircon is studied by quantitative microstructural and microchemical analysis of a large zircon grain collected from pyroxenite of the Lewisian Complex, Scotland. Electron backscatter diffraction (EBSD) mapping reveals a c.18 degree variation in crystallographic orientation that comprises both a gradual change in orientation and a series...

Incoherent Quasielastic Neutron Scattering study of hydrogen diffusion in thorium–zirconium hydrides

Monophase thorium–zirconium hydrides (ThZr2Hx) have been fabricated starting from a metallic alloy and the hydrogen stoichiometry determined by X-ray diffraction. Incoherent Quasielastic Neutron Scattering (IQNS) on the hydrides was conducted over the temperature range 650–750 K at the Backscattering Silicon Spectrometer (BASIS) at the Spallation Neutron Source (SNS) at ORNL. The isotropic Chud...

The Thorium Benzyne

Thorium speciation in seawater

Since the 1960s, thorium isotopes occupy a special place in the oceanographer’s toolbox as tracers for determining rates and mechanisms of oceanic scavenging, particle dynamics, and carbon fluxes. Due to their unique and constant production rates from soluble parent nuclides of uranium and radium, their disequilibrium can be used to calculate rates and time scales of sinking particles. In addit...

Erweiterung von X für digitale Filme

In dieser Arbeit wird eine Erweiterung von X11 für die Bewegtbilddarstellung in einer verteilten Umgebung vorgestellt. Sie ermöglicht den benutzerkontrollierten Ablauf von Filmen in Fenstern, die von Xzur Verfügung gestellt werden. Nach einer Einführung in die Problematik der Bewegtbilddarstellung und -Übertragung wird die Erweiterung des X-Window-Systems detailliert beschrieben. Der Schwerpunk...