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This study deals with the chemical interreaction between actinides and groundwater-colloids in selected aquiferes in the overburden of the planned final storage site for radioactive matter near Gorleben (Lower Saxony). As colloids have other transport pro...
National Technical Information Service (NTIS)
The hydrolysis of Np(V) has been studied by way of determining the pH dependence of the solubility in the pH range from 7 to 13.8, for the ionic strengths of 0.1, 1.0, and 3.0 M NaClO(sub 4), at a temperature of 25deg C. At high ionic strengths of > 1 M t...
The complex formation of Cm(III) with humic acid or fulvic acid isolated from a Gorleben groundwater is analysed in 0.1 M NaClO(sub 4) at pH = 6.0 by means of the time-resolved, laser-induced fluorescence spectroscopy. The humate and fulvate complexes are...
Environmental factors which influence the aging of plastics are treated. Concerning radiation, which is mainly solar, the UV-part is the most important for aging, its energy being able to split macromolecules and to build and chain radicals. Temperature i...
This study investigates the sensitivity of the surface temperature on an increase of cloudiness due to air traffic within a case study. A radiative convective model is used which originally was created by Liou, 1983. This model calculates the vertical tem...
Measurement of the dry deposition rates on trees by using the natural radioactivity as a tracer. The direct measurement of dry deposition fluxes into a canopy or onto single branches or leaves is difficult. The natural particle bound radioactivity in the ...
In this thesis, the distribution of Po-210 and Pb-210 in the upper 600 m of the Antarctic Circumpolar Current and the Weddell Sea was investigated along north-south transects in austral spring and autumn. Po-210 and Pb-210 can serve as sensitive tracers f...
The maple source I delivers 'radon containing water' for possible cure applications with sufficiently high radon concentrations of about 40 nCi Rn-222/l, extremely low concentration of radium and other solution containing materials, and is exceptional amo...
