Wide-angle electron beams from laser-wakefield accelerators
| Autor: | Gregor H. Welsh, X. Yang, Gregory Vieux, Zheng-Ming Sheng, M. R. Islam, D. Reboredo Gil, Dino A. Jaroszynski, Bernhard Ersfeld, M. Shahzad, Matthew P. Tooley, P. A. Grant, Silvia Cipiccia, Feiyu Li, Enrico Brunetti, S. M. Wiggins, D. W. Grant |
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| Rok vydání: | 2017 |
| Předmět: |
QC717
Physics 010308 nuclear & particles physics business.industry Bremsstrahlung Plasma Electron Radiation Plasma acceleration Laser 7. Clean energy 01 natural sciences law.invention Optics law Electric field 0103 physical sciences Physics::Accelerator Physics 010306 general physics business Charged particle beam |
| Zdroj: | Laser Acceleration of Electrons, Protons, and Ions IV |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2269314 |
| Popis: | Advances in laser technology have driven the development of laser-wakefield accelerators, compact devices that are capable of accelerating electrons to GeV energies over centimetre distances by exploiting the strong electric field gradients arising from the interaction of intense laser pulses with an underdense plasma. A side-effect of this acceleration mechanism is the production of high-charge, low-energy electron beams at wide angles. Here we present an experimental and numerical study of the properties of these wide-angle electron beams, and show that they carry off a significant fraction of the energy transferred from the laser to the plasma. These high-charge, wide-angle beams can also cause damage to laser-wakefield accelerators based on capillaries, as well as become source of unwanted bremsstrahlung radiation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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