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Effect of electron-beam energy chirp on signatures of radiation reaction in laser-based experiments
- Source :
- Phys. Rev. Accel. Beams 26, 104002 (2023)
- Publication Year :
- 2023
-
Abstract
- Current experiments investigating radiation reaction employ high energy electron beams together with tightly focused laser pulses in order to reach the quantum regime, as expressed through the quantum nonlinearity parameter $\chi$. Such experiments are often complicated by the large number of latent variables, including the precise structure of the electron bunch. Here we examine a correlation between the electron spatial and energy distributions, called an energy chirp, investigate its significance to the laser-electron beam interaction and show that the resulting effect cannot be trivially ignored when analysing current experiments. In particular, we show that the energy chirp has a large effect on the second moment of the electron energy, but a lesser impact on the first electron energy moment or the photon critical energy. These results show the importance of improved characterisation and control over electron bunch parameters on a shot-to-shot basis in such experiments.<br />Comment: 8 pages, 8 figures
- Subjects :
- Physics - Plasma Physics
Physics - Accelerator Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Accel. Beams 26, 104002 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2305.13978
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevAccelBeams.26.104002