Study of an experimental test station to determine the influence of particle beam openings onto ultra-low temperature regions

The following thesis provides a thermal analysis of a test station to determine the influence of particle beam openings to ultra-low temperature regions. The experimental cryostat was designed, manufactured and commissioned for heat load evaluations in an experimental and a theoretical way. The mathematical model is based on a view factor radiative model. The results of both are compared and discussed. The data acquisition system records values of temperature, and heat flow via a heatmeter, which principles of operation at low temperatures are presented in the thesis. The theoretical introduction describes the ASACUSA experiment at CERN, which served as a motivation of the developed test station. The extensive analysis of cooling methods in the temperature range of 1 K is proving the importance of an accurate heat load estimation in a design process of a sub-Kelvin cooling system. Theoretical calculations are proving the significant influence of room temperature openings to the ultra-low temperature regions.