| Autor: |
F. Peña, C. A. Lindstrøm, J. Beinortaitė, J. Björklund Svensson, L. Boulton, S. Diederichs, B. Foster, J. M. Garland, P. González Caminal, G. Loisch, S. Schröder, M. Thévenet, S. Wesch, J. C. Wood, J. Osterhoff, R. D'Arcy |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 6, Iss 4, p 043090 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.6.043090 |
| Popis: |
For plasma-wakefield accelerators to fulfill their potential for cost effectiveness, it is essential that their energy-transfer efficiency be maximized. A key aspect of this efficiency is the near-complete transfer of energy, or depletion, from the driver electrons to the plasma wake. Achieving full depletion is limited by the process of re-acceleration, which occurs when the driver electrons decelerate to nonrelativistic energies, slipping backward into the accelerating phase of the wakefield and being subsequently re-accelerated. Such re-acceleration is unambiguously observed here for the first time. At this re-acceleration limit, we measure a beam driver depositing (57 ± 3)% of its energy into a 195-mm-long plasma. This suggests that the energy-transfer efficiency of plasma accelerators could approach that of conventional accelerators. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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