This work characterizes halo formation in high-power linacs, indicating implications for beam quality assessments.
Work at the SNS Beam Test Facility aims to characterize halo formation in the early stages of a high-power linac and to reproduce halo measurements with well-benchmarked particle-in-cell simulations. The BTF is equipped with advanced phase space diagnostics that enable detailed characterization of beam distributions at the beginning and end of a 2.5 MeV, 10 meter test beamline. Diagnostic capabilities include direct measurement of the 6D phase space distribution, as well as imaging of 2D phase space projections with 6 orders of magnitude in dynamic range. This talk will compare predictions from the PyORBIT code to measured distributions, as well as discuss the parameters and limitations of the simulation model.
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Aleksandrov et al. (2026) studied this question.
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