Speaker
Nikolai Yampolsky
(Los Alamos Natonal Laboratory)
Description
We report on the progress in modeling performance of the H-ion source at LANSCE. We have developed a numerical model describing key physics processes from the first principles. The model accurately describes degradation of tungsten filaments and predicts their life time as well as the change in the performance. The model has been benchmarked against experimental data and shows good agreement in various regimes of operation. The model has been used to provide real time information for the degradation of the filaments in the 2019 production cycles at LANSCE. A table with estimates for the filament lifetime depending on the output ion source current has been generated.
Primary author
Nikolai Yampolsky
(Los Alamos Natonal Laboratory)
Co-authors
Dr
Larry Rybarcyk
(Los Alamos National Lab)
Dr
Enrique Henestroza
(Los Alamos National Lab)
David Kleinjan
(Los Alamos National Laboratory)
Ilija Draganic
(Los Alamos National Laboratory)
