In order to behave under radiation stress like a human cell, our radiation detector system is filled with a tissue-equivalent propane gas. It is of utmost importance that the gas is kept at an appropriate pressure on earth and in space! To ensure that the pressure vessel is safe, analysis is performed to ensure the vessel is strong enough to handle any load. Pictured here is the pressure vessel and the associated factor of safety at various points. This plot is the result of a thorough finite element analysis of possible loads and/or stressors.