Op de Faculteit natuurkunde binnen de Universiteit Leiden worden veel onderzoeken uitgevoerd met Helium. Het Helium wordt onder andere gebruikt voor onderzoeken bij Cryogene temperaturen. Wanneer het Helium vervuild raakt met zuurstof en stikstof, zorgt dit voor ijsvorming in de opslagtanks. De oplossing …

In this research several methods were developed and validated using the Supermini 200 wavelength dispersive X-ray fluorescence spectrometer. A multielement was calibrated containing 26 elements and corrected for interference according to the de Jongh algorithm. The limits of detection and quantification …

The customers of Inspectorate ship gasoline to Asia. Due to the limitations of the ships and costs of the journey it is preferred to concentrate the gasoline. The concentrated gasoline can be blended with other “cheaper” forms of gasoline to make the required gasoline. Because of the concentrated form …

Nuclear fusion is seen as one of the future technologies for roducing electrical power. In a hot and con ned plasma deuterium and tritium will melt together and form a helium nucleus and a neutron. This process produces a total of 17.6 MeV energy. In the plasma instabilities occur. Suppression of these …