Test Results of a High-Gradient 2.856 GHz Negative Harmonic Accelerating Waveguideстатья
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Аннотация:We report the high-gradient tests results of a novel traveling wave accelerating structure for β=0.3, based on a novel approach of operating at the first negative spatial harmonic. Accelerating gradients of 50 MV/m and peak electric fields of 160 MV/m were achieved in a single structure consisting of 15 coupled cells during tests at the Advanced Photon Source. This work was performed by RadiaBeam, in collaboration with Argonne National Laboratory, as a part of a Research and Development program for the development of an ultra-high-gradient linear accelerator, the Advanced Compact Carbon Ion Linac, for hadron therapy.