Integrable Optics Design Principles for Beam Halo Suppression in Accelerator Rings at the Intensity Frontier

Future accelerator applications for discovery science and industrial use will require more intense beams than ever before. New concepts in lattice design are required that can safely handle transport of these high-intensity beams. A possible solution is to use lattice designs with very strong nonlinearities, but which still provide bounded motion. This will allow for safe transport while preventing unstable collective effects which plague high-intensity machines. RadiaSoft LLC, in collaboration with Fermi National Accelerator Laboratory, will use a combination of analytic theory and simulations to study how space charge and other perturbations affect single-particle orbits in the nonlinear optics. We will develop an injection scheme for matching intense beams to a nonlinear potential. We will demonstrate novel ways of using conventional diagnostics to provide beam measurements in the presence of nonlinear optics. RadiaSoft has advanced the understanding of nonlinear integrable optics through analytic theory and simulations using the Fermilab code Synergia. We have developed tools and techniques to enhance the IOTA lattice design in support of Fermilab’s Proton Improvement Plan. We have constructed an open-source framework for cloud-based scientific computing, called Sirepo, for providing browser-based access to beam physics codes. We will develop symplectic algorithms for self-consistent space charge and wake field effects in Synergia. We will consider novel injection schemes for nonlinear distributions, as well as the effects of synchrotron oscillations. In addition to the IOTA ring, we will address larger ring designs relevant to Fermilab’s Proton Improvement Plan. We will continue to enhance the Sirepo framework in support of Synergia and associated tools for nonlinear integrable optics studies. Our commercialization strategy is to offer consulting services and subscription-based access to computer-aided engineering (CAE) software via the Sirepo framework. RadiaSoft will provide reliable, accurate, and easy-to-use simulation tools for science and engineering start-ups who lack the capital and expertise to justify licensing and training costs.