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We report on the observation of energy gain in excess of 20 MeV at the Inverse Free Electron Laser Accelerator ex- periment at the Neptune Laboratory at UCLA. A 14.5 MeV electron beam is injected in a 50 cm long undulator strongly tapered both in period and field amplitude. A CO2 10.6 µm laser with power > 300 GW is used as the IFEL driver. The Ray...
Context in source publication
Context 1
... Fig. 5, we show the first three resonant energy curves for the Neptune IFEL undulator. In the experiment the par- ticles fall out of the accelerating bucket from the resonant curve (red) because of the mismatched laser intensity dis- tribution. At some point later in the undulator the particles energy is 1/ √ 2 times the resonant energy, at ...
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The particle optics code GPT [1] has been applied to study the single pass electron beam interaction with an external laser field in the undulator system of a free electron laser. In particular, this code has been used to simulate the laser -electron beam interaction in an optical klystron. Micro-bunching as a result of the interaction of the elect...
