Integrable optics design principles for beam halo suppression in accelerator rings at the intensity frontier (CRADA FRA-2015-0010 Final Summary Report)
RadiaSoft LLC is collaborating with Fermilab to fundamentally advance the field of particle accelerator design, in order to reduce cost and technical risk for next-generation hadron accelerators, and to more rapidly advance the intensity frontier of high energy physics. The Fermilab PI is one of the originators of the theory of integrable nonlinear magnetic lattices. Fermilab is the only laboratory in the world pursuing the experimental verification of the theory. Transferring Fermilab expertise to RadiaSoft LLC will enhance US competitiveness by enabling US industry to engage in the design of future high intensity hadron rings for spallation sources, neutrino sources, muon sources, subcritical nuclear reactors and waste transmutation facilities. This project sought to quantify the possibilities and limitations of this fundamentally new approach to high-intensity accelerator ring design, using the parallel Synergia framework for simulations. New knowledge is expected to be gained on the following topics: a) the effects of space charge forces, field errors, magnet misalignments, and other sources of parametric resonance; b) the effect of controlled nonlinearities, such as sextupoles for chromaticity control; c) the effect of longitudinal dynamics driven by finite bunch length and rf cavities; d) how to optimally populate a Vlasov equilibrium particle distribution, perhaps via laser stripping of H- upon injection; e) optimal equilibrium distributions and methods to achieve approximately linear transverse space charge forces within the beam, and f) reexamination of relevant lattices in the literature or in present accelerators to explore potential benefits of these new design principles. Dr. Alexander Valishev and Dr. Jeffrey Eldred provided consulting support in the physics of space charge dominated beam dynamics in the IOTA ring and other high intensity synchrotron ring designs and collaborated with RadiaSoft personnel to understand the impact of longitudinal dynamics on the stability of integrable systems.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1781075
- Report Number(s):
- FERMILAB-CRADA-FRA-2015-0010; oai:inspirehep.net:1861817; TRN: US2216046
- Country of Publication:
- United States
- Language:
- English
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