| Autor: |
B Aurand, L Reichwein, K M Schwind, E Aktan, M Cerchez, V Kaymak, L Lessmann, R Prasad, J Thomas, T Toncian, A Khoukaz, A Pukhov, O Willi |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 24, Iss 3, p 033006 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/ac53ba |
| Popis: |
We study the laser-driven acceleration of electrons from overdense hydrogen clusters to energies of up to 13 MeV in laser forward direction and several hundreds of keV in an outer ring-structure. The use of cryogenic hydrogen allows for high repetition-rate operation and examination of the influence of source parameters like temperature and gas flow. The outer ring-structure of accelerated electrons, originating from the interaction, that is robust against the change of laser and target parameters can be observed for low electron densities of ca 3 × 10 ^16 cm ^−3 . For higher electron densities, an additional central spot of electrons in the laser forward direction can be observed. Utilizing 3D particle-in-cell simulations, it is revealed that both electron populations mainly stem from ponderomotive scattering. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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