Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"magnetic shield"”.
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The Earth's Magnetic Field
The Earth's magnetic field is essential for life on Earth, as we know it, to exist. It forms a magnetic shield around the planet, protecting it from high energy particles and radiation from the Sun, which can cause damage to life, power systems, orbiting satellites, astronauts and spacecrafts. This …
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Physics of ultracold spin mixtures in low and stable magnetic field environment
A high degree of control over the magnetic field is required in many ultracold atom experiments. On the one hand, magnetic field stability sets the fundamental limit for observing phenomena in coherently coupled superfluid mixtures. In our laboratory, a magnetic shield ensures field stability at …
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Design of the electron spectrometer for the HUNTER experiment and timescale of electron thermalization in liquid Argon for directional detection of WIMP dark matter
… by an optimized set of electrodes paired to a magnetic field to confine their trajectories into spirals. A magnetic shield protects the electron from external stray fields that could alter their trajectories. A thorough study on the main source of background, namely the source scattering of …
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Divergent Plume Reduction of a High-Efficiency Multistage Plasma Thruster
… thesis explores the design and application of a magnetic shield to modify the thruster’s magnetic field to force more ion current towards the centerline. A previous Cal Poly thesis explored the same concept, and that work is continued and furthered here. The previous thesis tested a shield which …
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Electromagnetic tracking and steering for catheter navigation
This thesis explores the use of electromagnetics for both steering and tracking of medical instruments in minimally invasive surgeries. The end application is virtual navigation of the lung for biopsy of early stage cancer nodules. Navigation to the peripheral regions of the lung is difficult due …
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Hollow Plume Mitigation of a High-Efficiency Multistage Plasma Thruster
… to characterize this plume shape and implement a shield to restore a conical shape to the plume. A similar solution was used on a different type of thruster, a cylindrical hall thruster, at Princeton with excellent results. A shield was designed to shunt the magnetic field outside the thruster, …
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A new apparatus to simulate fundamental interactions with ultracold atoms
… shifts, requires a specific effort to remove magnetic field fluctuations: a rough estimate suggests that in order to maintain the system coherence for a sufficiently long time to study its dynamics, magnetic field fluctuations should be reduced by at least three orders of magnitude compared to …