Abstract
The 3D ERO code, which simulates plasma–wall interaction and impurity transport in magnetically confined fusion-relevant devices is described. As application, prompt deposition of eroded tungsten has been simulated at surfaces with shallow magnetic field of 3 T. Dedicated PIC simulations have been performed to calculate the characteristics of the sheath in front of plasma–exposed surfaces to use as input for these ERO simulations. Prompt deposition of tungsten reaches 100% at the highest electron temperature and density. In comparison to more simplified assumptions for the sheath the amount of prompt deposition is in general smaller if the PIC–calculated sheath is used. Due to friction with the background plasma the impact energy of deposited tungsten can be significantly larger than the energy gained in the sheath potential.
| Original language | English |
|---|---|
| Pages (from-to) | 622-627 |
| Number of pages | 6 |
| Journal | Contributions to Plasma Physics |
| Volume | 56 |
| Issue number | 6-8 |
| DOIs | |
| State | Published - 1 Aug 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 The Authors. Contributions to Plasma Physics published by Wiley-VCH Verlag GmbH & Co. KGaA Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords
- ERO
- Fusion research
- PIC
- erosion
- plasma−wall interaction
- prompt deposition