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A system was designed and assembled to measure the critical temperature of superconductive thin niobium titanium nitride films. The films were produced via a process called sputtering. The parameters used during this process were characterized to produce films with as high as possible critical temperature …

The goal of this study was to explain various measurements of atmospheric methane on Mars performed by the PFS instrument on-board the European Mars Express mission and from ground based observations. In order to reach this goal a layer of methane was assumed to exist in porous near surface layers of …

In the medical community, X-rays are an important tool in imaging the human body. In principle X-ray images are 2 dimensional images. By measuring such X-ray images at multiple angles, one can construct the 3 dimensional inner structure of the sample. This 3 dimensional structure is created by applying …

In dit onderzoek zijn de mogelijkheden onderzocht voor alternatieve manieren van daglichttransport in een schoolgebouw, omdat dit een positieve invloed op de werkprestaties heeft. Er zijn oplossingen beschreven om daglicht via een andere weg dan gevelopeningen een ruimte in te leiden zoals intelligente …

Research is done on the properties of a niobium superconducting magnetic shield sample (see image below this abstract), its magnetic attenuation; and behaviour around the transition temperature 9.25 K. The attenuation of the magnetic shield sample was measured in a cryogenic setup. This is required to …

Scanning tunneling microscopy is an important and enabling tool for condensed matter physics and surface science. The low temperature STM in Leiden (Prof. J. Van Ruitenbeek and Prof J. Aarts) is used for research in the field of atomic/molecular electronics and superconductivity. The current low temperature …

A program that automatically detects auroral events in all-sky images taken by the all-sky camera of IRF has been written. Current programs that automatically detect the aurora in all-sky images using the RGB color system often miss strong aurora and sometimes interprets clouds as aurora. To improve …

Een bestraalde EBT3 film wordt door middel van een commerciële flatbed scanner uitgelezen. Het is gebruikelijk om deze film te scannen in transmissie modus. De absorptie van de film wordt uitgelezen en omgezet naar een maat voor de dosis in cGy per pixel. Deze dosis wordt met een zekere nauwkeurigheid …

The Pierre Auger group is studying ultra-high energy cosmic rays. Cosmic rays are charged particles which permanently hit and penetrate the atmosphere of the Earth. They will at a certain moment collide with nuclei in the atmosphere, like nitrogen. The results of such an interaction are new particles, …