Commissioning and Recent Experimental Results at the Argonne Wakefield Accelerator Facility (AWA)

Abstract

The commissioning of the upgraded AWA facility has been recently completed. The L-band electron gun has been fully commissioned and has been successfully operated with its Cesium Telluride photocathode at a gradient of 80 MV/m. Single bunches of up to 100 nC, and bunch trains of up to 32 bunches with a maximum total charge in the trains of 600 nC have been generated. Six pi-mode accelerating cavities bring the beam energy to 70 MeV. Initial measurements of the beam parameters have been performed. This intense beam has been used to drive wakefields in several structures, including a 26 GHz dielectric loaded power extractor, an 11.7 GHz photonicband-gap metallic structure (PBG), and an 11.7 GHz metallic iris loaded power extractor. A second beamline provides electron bunches to probe the wakefields generated by the intense drive beam. A recent experiment has demonstrated acceleration (and deceleration) of the witness beam, in the so-called two-beam-accelerator scheme, with accelerating gradients over 40 MV/m.

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Cite this paper

@inproceedings{Conde2015CommissioningAR, title={Commissioning and Recent Experimental Results at the Argonne Wakefield Accelerator Facility (AWA)}, author={Manoel E. Conde}, year={2015} }