Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2501.05785 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866917126204293120 |
|---|---|
| author | Zhao, Yinjian Wang, Baisheng Meng, Tianhang |
| author_facet | Zhao, Yinjian Wang, Baisheng Meng, Tianhang |
| contents | Hollow cathodes are becoming the bottleneck of many electric propulsion systems, because of the sputtering and erosion on both cathodes and thrusters from the generation of anomalously energetic ions. So far, it is believed that energetic ions are formed by waves and instabilities always accompanied in cathode discharge, but there is no evidence yet that those proposed instabilities can lead to such high ion energies measured in experiments. In this work, a new mechanism of charge separation instability in hollow cathode plume is found via fully kinetic PIC simulations, which can easily produce energetic ions to the same level as measured in experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05785 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Formation of Anomalously Energetic Ions in Hollow Cathode Plume by Charge Separation Instability Zhao, Yinjian Wang, Baisheng Meng, Tianhang Plasma Physics Hollow cathodes are becoming the bottleneck of many electric propulsion systems, because of the sputtering and erosion on both cathodes and thrusters from the generation of anomalously energetic ions. So far, it is believed that energetic ions are formed by waves and instabilities always accompanied in cathode discharge, but there is no evidence yet that those proposed instabilities can lead to such high ion energies measured in experiments. In this work, a new mechanism of charge separation instability in hollow cathode plume is found via fully kinetic PIC simulations, which can easily produce energetic ions to the same level as measured in experiments. |
| title | Formation of Anomalously Energetic Ions in Hollow Cathode Plume by Charge Separation Instability |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2501.05785 |