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P. Traczykowski, L. T. Campbell, H. Freund, J. Henderson, B. W. J. M, and P. J. M. van der Slot, “Comparison Between, and Validation Against an Experiment of, a Slowly-varying Envelope Approximation Code and a Particle-in-Cell Simulation Code for Free-Electron Lasers”, in Proc. 39th Int. Free Electron Laser Conf. (FEL'19), Hamburg, Germany, Aug. 2019, pp. 153-156. |
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R. L. Ives et al., “High Efficiency, Low Cost RF Sources for Accelerators and Colliders”, in Proc. 12th Int. Particle Accelerator Conf. (IPAC'21), Campinas, Brazil, May 2021, pp. 2322-2324. |
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B. Beaudoin, H. Freund, J. Petillo, M. Fazio, P. O'Shea, and R. True, “High DC injection voltage photocathode e-beam sources”, in Proc. 6th North American Particle Accelerator Conference (NAPAC'25), Sacramento, California, USA, Aug. 2025, pp. 464-467. |
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H. Freund and P. O'Shea, “The Generation of Variable Polarization States in Terawatt X-Ray Free-Electron Lasers”, presented at the 17th Int. Particle Accelerator Conf. (IPAC'26), Deauville, France, May 2026, paper TUP2313, this conference. |
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H. Freund, P. O'Shea, and P. van der Slot, “Efficiency enhancement in regenerative amplifier free-electron lasers using a tapered undulator”, presented at the 17th Int. Particle Accelerator Conf. (IPAC'26), Deauville, France, May 2026, paper TUP2314, this conference. |
