Simulation-based optimization for the TRIUMF FEBIAD ion source

The TRIUMF-FEBIAD ion source is typically used to generate radioactive ion beams of molecules, halogens, and noble gases. The experimental campaign undertaken in the past couple of years has shown room for operational improvement, for example, by increasing the thermionic emission from the hot cathode. However, this work has also identify reliability issues in the thermo-mechanical aspect of the source. To mitigate failures observed due to unwanted excessive heating, a simulation campaign has been performed to increase the reliability and performance of the FEBIAD ion source. This paper presents the results derived from a simulation-based optimization campaign that can increase the overall ionization efficiency and robustness of the TRIUMF-FEBIAD ion source.

Automated summary

The TRIUMF-FEBIAD ion source is commonly used for generating radioactive ion beams of molecules, halogens, and noble gases. Recent experiments have shown room for operational improvement, particularly by increasing thermionic emission from the hot cathode. However, reliability issues in the thermo-mechanical aspect of the source have also been identified. To address excessive heating-induced failures, a simulation campaign was conducted to enhance the reliability and performance of the FEBIAD ion source. This paper presents the results of a simulation-based optimization campaign that can improve the overall ionization efficiency and robustness of the TRIUMF-FEBIAD ion source.