Simulation and Analysis of Cryomodule Heat Loads and Cold Tests for the High Beta 650MHz Prototype in the PIP-II Project

The Proton Improvement Plan II (PIP-II) project at Fermilab aims to upgrade the particle accelerator complex to generate high-energy neutrino beams for the Deep Underground Neutrino Experiment (DUNE) and the Long-Baseline Neutrino Facility (LBNF). As part of this project, the design and optimization of the cryomodules play a crucial role in achieving efficient operation. In this thesis, the focus is on the High Beta 650MHz (HB650) cryomodule, which was chosen for detailed analysis due to its relevance during the research period. The aim of this study is to estimate the heat loads, and determine the temperatures of key components during cool-down. To accomplish this, Simulink (MATLAB) has been used on a simplified geometry to simulate HB650 cool-down from 300 K to 2 K, the simulation results are then compared with the actual cold test data obtained from the prototype HB650 cryomodule. This comparative analysis provides insights into the cryomodule's performance and helps validate the simulation models. The findings from this research contribute to the overall understanding and optimization of the cryomodule design for the PIP-II project, aiding in the development of efficient cryogenic systems for future particle accelerator operations.