Adaptation and Redesign of SPECTRAP Beamline

Sammanfattning: Replacement of the superconducting magnet used in the SPECTRAP laser spectroscopy experiment at GSI necessitates redesign of some associated components. This thesis investigates a potential new beamline for SPECTRAP using a single pulse drift tube to slow the ions down. The beamline contains three parts, a horizontal part connected to the low-energy HITRAP beamline, a vertical part which transports the ions to the pulse drift tube and the pulse drift tube itself.   Simulation and tuning of the horizontal beamline were performed using the ion optics code called COSY Infinity. The resultant beam was then continued into the vertical part in SIMION. The components were then tuned by hand. The result was approximately 19% of ions ending up within the radius of the input beam used when simulating the pulse drift tube.   Additionally, the function of a crown-shaped pulse drift tube were analysed, consisting of two interlocked serrated tubes separated by a small distance. Simulations were performed in SIMION based on reasonable input beam conditions. The effect of parameters influencing the behaviour of the ions traversing the pulse drift tube were investigated, leading to optimisation of operating voltages and design specifications.   Based on the results of the simulations performed it was determined that a beamline based on a single crown-shaped PDT could be feasible. It is however unclear if existing beamline components could operate at the voltages required for transport to the pulse drift tube.