Seeding of Self-Modulation using Truncated Seed Bunches as a Path to High Gradient Acceleration
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2026
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866912990729601024 |
|---|---|
| author | van Gils, N. Z. Belli, E. Bergamaschi, M. Clairembaud, A. Gerbershagen, A. Gschwendtner, E. Jaworska, H. Mezger, J. Moreira, M. Muggli, P. Pannell, F. Ranc, L. Turner, M. Collaboration, the AWAKE |
| author_facet | van Gils, N. Z. Belli, E. Bergamaschi, M. Clairembaud, A. Gerbershagen, A. Gschwendtner, E. Jaworska, H. Mezger, J. Moreira, M. Muggli, P. Pannell, F. Ranc, L. Turner, M. Collaboration, the AWAKE |
| contents | This manuscript proposes a method to enable controlled high-gradient particle acceleration when requiring self-modulation of the drive bunch. While electron bunch seeding of self-modulation (eSSM) has been realised at a plasma electron density $n_\mathrm{pe}\cong10^{14}\mathrm{cm}^{-3}$, it has not been demonstrated at higher plasma densities due to limitations of available seed bunch properties. As experimentally shown in this manuscript, truncating available seed bunches with a relativistic ionisation front allows these limitations to be overcome. This seeding method is called truncated electron bunch seeding of self-modulation (teSSM) and experiments confirm that -- when using teSSM -- self-modulation becomes reproducible at $n_\mathrm{pe}=7\times10^{14}\mathrm{cm}^{-3}$. Additionally, the seed wakefield amplitude is also increased, which is known to be advantageous because it shortens the length needed to reach self-modulation saturation. The presented results establish teSSM as a method for achieving controlled, high-gradient particle acceleration with long drivers and available seed bunches. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_29472 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Seeding of Self-Modulation using Truncated Seed Bunches as a Path to High Gradient Acceleration van Gils, N. Z. Belli, E. Bergamaschi, M. Clairembaud, A. Gerbershagen, A. Gschwendtner, E. Jaworska, H. Mezger, J. Moreira, M. Muggli, P. Pannell, F. Ranc, L. Turner, M. Collaboration, the AWAKE Accelerator Physics Plasma Physics This manuscript proposes a method to enable controlled high-gradient particle acceleration when requiring self-modulation of the drive bunch. While electron bunch seeding of self-modulation (eSSM) has been realised at a plasma electron density $n_\mathrm{pe}\cong10^{14}\mathrm{cm}^{-3}$, it has not been demonstrated at higher plasma densities due to limitations of available seed bunch properties. As experimentally shown in this manuscript, truncating available seed bunches with a relativistic ionisation front allows these limitations to be overcome. This seeding method is called truncated electron bunch seeding of self-modulation (teSSM) and experiments confirm that -- when using teSSM -- self-modulation becomes reproducible at $n_\mathrm{pe}=7\times10^{14}\mathrm{cm}^{-3}$. Additionally, the seed wakefield amplitude is also increased, which is known to be advantageous because it shortens the length needed to reach self-modulation saturation. The presented results establish teSSM as a method for achieving controlled, high-gradient particle acceleration with long drivers and available seed bunches. |
| title | Seeding of Self-Modulation using Truncated Seed Bunches as a Path to High Gradient Acceleration |
| topic | Accelerator Physics Plasma Physics |
| url | https://arxiv.org/abs/2603.29472 |