The paper illustrates the most recent achievements in the development of multi-channels hollow cathode numerical models by ALTA and RIAME-MAI. The joint activity is aimed at attaining a reliable design tool for high-current hollow cathodes for future 100-kWclass nuclear-electric propulsion missions. The attention is focused on the effort to study the erosion process of the cathode. After a brief introduction about the model hypothesis, preliminary results of the early simulation are presented. Results of the profiles of the main plasma parameters and cathode wall temperature are shown. To validate the models, an experimental activity on three single and multi-channel hollow cathodes is planned at ALTA in next months. The experimental setup and the cathode design are herein illustrated.

Numerical Model for 100-kW Class Hollow Cathodes

PAGANUCCI, FABRIZIO;ANDRENUCCI, MARIANO
2010

Abstract

The paper illustrates the most recent achievements in the development of multi-channels hollow cathode numerical models by ALTA and RIAME-MAI. The joint activity is aimed at attaining a reliable design tool for high-current hollow cathodes for future 100-kWclass nuclear-electric propulsion missions. The attention is focused on the effort to study the erosion process of the cathode. After a brief introduction about the model hypothesis, preliminary results of the early simulation are presented. Results of the profiles of the main plasma parameters and cathode wall temperature are shown. To validate the models, an experimental activity on three single and multi-channel hollow cathodes is planned at ALTA in next months. The experimental setup and the cathode design are herein illustrated.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/200426
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