Speaker
Description
The linac-based test accelerator FLUTE contains a bunch compressor to create few-fs scale bunches that generate coherent radiation in the THz regime. The form and spectrum of the THz pulse strongly depend on the evolution of the bunch along the bunch compressor, and hence on the paths of the particles. From a given path of a charged particle, one can compute the emitted radiation by means of the Liénard-Wiechert potentials. A problem with this approach is that one needs to solve an implicit equation for the retarded time. Here, we instead compute the retarded time from the particle time and observer position. Furthermore, the Liénard-Wiechert potentials depend on the acceleration, while macro-particle tracking only yields the particle positions and momenta at fixed times. To compute the acceleration, we interpolate the data by twice differentiable functions. We compare the numerical results to the analytical benchmark case of synchrotron radiation. Finally, we compute the coherent radiation emitted of simulated bunches during compression.
| In which format do you inted to submit your paper? | LaTeX |
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