Results of the reacceleration experiment: Experimental study of the relativistic klystron two-beam accelerator concept

We recently demonstrated the reacceleration of a bunched beam through an induction accelerator cell in support of the two-beam accelerator concept. We present the results of this experiment including amplitude and phase measurements of the extracted microwave power at 11.424 GHz. We also describe progress in achieving a two-beam accelerator microwave source design that is efficient and cost effective for linear collider applications.