Determination of few femtosecond to attosecond electron bunch durations using a passive plasma lens
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911030031941632 |
|---|---|
| author | Seidel, Andreas Zepter, Carola Sävert, Alexander Kuschel, Stephan Zepf, Matt |
| author_facet | Seidel, Andreas Zepter, Carola Sävert, Alexander Kuschel, Stephan Zepf, Matt |
| contents | Determining the pulse duration of femtosecond electron bunches is challenging and often experimentally invasive. An effective method for measuring the duration based on the time-dependent variations in electron beam divergence induced by a passive plasma lens is described. Reconstruction of the temporal shape of the electron bunch down to $c \cdot dt=10$ nm ($\sim 30$ as) without external RF-cavities or multi-octave spanning spectrometer is shown numerically. Experimental data from a $\sim$ 3fs electron bunch demonstrates practical applicability of this method. While this approach can be used with any high current electron beam, it is particularly well matched to laser-driven and particle-driven wakefield accelerators and also accommodates electron beams with a time-dependent beam-energy (eg. 'chirp'). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_24107 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Determination of few femtosecond to attosecond electron bunch durations using a passive plasma lens Seidel, Andreas Zepter, Carola Sävert, Alexander Kuschel, Stephan Zepf, Matt Accelerator Physics Determining the pulse duration of femtosecond electron bunches is challenging and often experimentally invasive. An effective method for measuring the duration based on the time-dependent variations in electron beam divergence induced by a passive plasma lens is described. Reconstruction of the temporal shape of the electron bunch down to $c \cdot dt=10$ nm ($\sim 30$ as) without external RF-cavities or multi-octave spanning spectrometer is shown numerically. Experimental data from a $\sim$ 3fs electron bunch demonstrates practical applicability of this method. While this approach can be used with any high current electron beam, it is particularly well matched to laser-driven and particle-driven wakefield accelerators and also accommodates electron beams with a time-dependent beam-energy (eg. 'chirp'). |
| title | Determination of few femtosecond to attosecond electron bunch durations using a passive plasma lens |
| topic | Accelerator Physics |
| url | https://arxiv.org/abs/2506.24107 |