Guiding of an electron beam from a rf accelerator by a laser-ionized channel

The first guiding of multiple pulses from a rf accelerator by an ultraviolet‐laser‐ionized channel in low‐pressure benzene has been demonstrated. In particular, two 5‐ns, 750‐A, 30‐MeV pulses separated by 20 ns were transported a maximum distance of 13.5 m. Detailed measurements of the temporal behavior of the beam as it propagated versus distance, laser‐channel parameters, and accelerator conditions were made.

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