| Autor: |
D. R. Welch, N. Bennett, T. C. Genoni, D. V. Rose, C. Thoma, C. Miller, W. A. Stygar |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Physical Review Accelerators and Beams, Vol 22, Iss 7, p 070401 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2469-9888 |
| DOI: |
10.1103/PhysRevAccelBeams.22.070401 |
| Popis: |
The dynamics of electrode heating, sheath flow, and contaminant plasma evolution in Sandia National Laboratories’ high-power Z accelerator is studied in a series of 2D relativistic particle-in-cell simulations. These dynamics can lead to the shunting of current before reaching the Z pinch load, thus degrading load performance. Previous work has focused on current diverted in the upstream magnetically insulated transmission lines (MITLs) and post-hole convolute regions of Z. In these regions, losses were found to scale strongly with load impedance as well as the system vacuum and were calculated to be as high as 1–2 MA. Downstream from the convolute region in Z, current measurement is problematic, leading to a lack of understanding of the loss mechanisms in the small radius ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
