Journal
BRAZILIAN JOURNAL OF PHYSICS
Volume 52, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/s13538-022-01122-7
Keywords
Radiation reaction; Particle acceleration; Free-electron laser
Categories
Funding
- CNPq, Brasil
- CAPES, Brasil
- [ANR-11IDEX-0004-02 Plas@Par]
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Charged particles can be efficiently accelerated towards the speed of light through a spatially modulated electrostatic field and the superposition of a spatially modulated magnetic field and a laser. The acceleration process depends on the particle's initial velocity, the amplitude of the fields, the length scale of the modulation, and the frequencies of the fields. The physics behind these accelerators involves resonance between the particle's velocity and the field's phase velocity. However, the inclusion of radiation reaction effect in the calculations may affect the promising results.
It is possible to accelerate efficiently a charged particle toward the speed of light through a spatially modulated electrostatic field and through the superposition of a spatially modulated magnetic field and a laser. In both cases, the acceleration process requires an adequate initial velocity of the particle and depends on the amplitude of the fields, the length scale of the modulation and the wavenumbers, and frequencies of the fields. The physics behind these accelerators involves a resonance between the particle's velocity and the field's phase velocity. The promising results, however, may be affected when the radiation reaction effect is included in the calculations. Understanding the role of the radiation reaction over these schemes is the aim of the present work. As we are going to show, in a counter-intuitive way, the effects of radiation reaction can help to accelerate charge particles under some specific conditions.
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