Resources

Publications

  • Kick-and-cancel injection scheme for the Diamond-II storage ring

    Author(s): A. Lueangaramwong, R. T. Fielder, A. Morgan, J. Kallestrup, I. P. S. Martin, J. D. Hares, A. K. L. Dymoke-Bradshaw, and P. A. Kellett A novel quasitransparent top-up injection scheme is expected to significantly improve the transparency of the injection process and reduce the recovery time for the targeted bunch, along with minimizing transverse wakefield effects and any interactions with the transverse multibunch feedback and harmonic...

  • Experimental demonstration of dark current mitigation by an over-inserted plug in a normal conducting very-high-frequency gun

    Author(s): Xing-Heng Wang, Guan Shu, Hou-Jun Qian, Xu-Dong Li, Zi-Peng Liu, Zeng-Gong Jiang, Hao Meng, Cao-Cao Xing, Qin Zhou, and Hai-Xiao Deng Very high frequency (VHF) band normal conducting guns are used as electron sources for high-repetition-rate free electron lasers, including LCLS-II in the US and SHINE in China. Substantial dark current can lead to unwanted radiation losses in these guns. It is demonstrated that by slightly over-inserting...

  • BAGELS for simultaneous polarization, orbit, and optics control in electron storage rings

    Author(s): M. G. Signorelli and G. H. Hoffstaetter We present a novel method to minimize radiative depolarization in electron storage rings. Groups of vertical orbit bumps are constructed that achieve simultaneous polarization, orbit, and optics control, motivating the name “Best Adjustment Groups for ELectron Spin” (BAGELS). Applied in simulations of the 18 GeV Electron Storage Ring of the Electron-Ion Collider, BAGELS increases the asymptotic...

  • Local chromatic correction optics for Future Circular Collider ${e}^{+}{e}^{−}$

    Author(s): Pantaleo Raimondi, Simone Maria Liuzzo, Laurent Farvacque, Simon White, and Michael Hofer Local Chromatic Correction optics are proposed for the Future Circular e+ − e− Collider. These new optics assume an identical layout of the magnets at all operation. The arcs design is a step forward from the classic FODO lattice that achieves near cancellation up to the fourth order of chromatic and geometric aberrations. Straight sections and...

  • Beam breakup instability studies of powerful energy recovery linac for experiments

    Author(s): S. Setiniyaz, R. Apsimon, P. H. Williams, C. Barbagallo, S. A. Bogacz, R. M. Bodenstein, and K. Deitrick Filling patterns and bunch timings play a critical role in the beam breakup instability in multipass energy recovery linacs. [Phys. Rev. Accel. Beams 28, 011003] Published Thu Jan 23, 2025

  • Beam stacking experiment at a fixed field alternating gradient accelerator

    Author(s): T. Uesugi, Y. Ishi, Y. Kuriyama, Y. Mori, C. Jolly, D. J. Kelliher, J.-B. Lagrange, A. P. Letchford, S. Machida, D. W. Posthuma de Boer, C. T. Rogers, E. Yamakawa, and M. Topp-Mugglestone Beam stacking experiments in an FFA to reduce space charge effect. [Phys. Rev. Accel. Beams 28, 012803] Published Thu Jan 16, 2025

  • High-density gas target at the LHCb experiment

    Author(s): O. Boente Garcia et al. A high-density gas target in the LHC opens new opportunities for physics measurements with protons and heavy ions. [Phys. Rev. Accel. Beams 27, 111001] Published Fri Nov 08, 2024
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