Academic Journal
Towards attosecond high-energy electron bunches : controlling self-injection in laser wakefield accelerators through plasma density modulation
| العنوان: | Towards attosecond high-energy electron bunches : controlling self-injection in laser wakefield accelerators through plasma density modulation |
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| المؤلفون: | Tooley, M. P., Ersfeld, B., Yoffe, S. R., Noble, A., Brunetti, E., Sheng, Z. M., Islam, M. R., Jaroszynski, D. A. |
| سنة النشر: | 2017 |
| المجموعة: | University of Strathclyde Glasgow: Strathprints |
| مصطلحات موضوعية: | Optics. Light, Plasma physics. Ionized gases |
| الوصف: | Self-injection in a laser-plasma wakefield accelerator (LWFA) is usually achieved by increasing the laser intensity until the threshold for injection is exceeded. Alternatively, the velocity of the bubble accelerating structure can be controlled using plasma density ramps, reducing the electron velocity required for injection. We present a model describing self-injection in the short bunch regime for arbitrary changes in the plasma density. We derive the threshold condition for injection due to a plasma density gradient, which is confirmed using particle-in-cell (PIC) simulations that demonstrate injection of sub-femtosecond bunches. It is shown that the bunch charge, bunch length and separation of bunches in a bunch train can be controlled by tailoring the plasma density profile. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | unknown |
| Relation: | https://strathprints.strath.ac.uk/60831/8/Tooley_etal_PRL_2017_Towards_attosecond_high_energy_electron_bunches.pdf; Tooley, M. P. and Ersfeld, B. and Yoffe, S. R. and Noble, A. and Brunetti, E. and Sheng, Z. M. and Islam, M. R. and Jaroszynski, D. A. (2017 ) Towards attosecond high-energy electron bunches : controlling self-injection in laser wakefield accelerators through plasma density modulation. Phys. Rev. Lett. , 119. 044801. ISSN 1079-7114 |
| DOI: | 10.1103/PhysRevLett.119.044801 |
| الاتاحة: | https://strathprints.strath.ac.uk/60831/ https://strathprints.strath.ac.uk/60831/8/Tooley_etal_PRL_2017_Towards_attosecond_high_energy_electron_bunches.pdf https://doi.org/10.1103/PhysRevLett.119.044801 |
| Rights: | cc_by |
| رقم الانضمام: | edsbas.722AD6C5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevLett.119.044801 |
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