MOYLR06
ESS, Lund, Sweden
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MOYLR06 |
Beam Dynamics: A Tool for Facility Optimization | |
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| The ESS top level parameters of 5 MW, 3 ms pulse length and 14 Hz repetition rate are given by user requirements. The choice of 2 GeV, 62.5 mA and 2.87 ms pulse length were chosen at laboratory level and were largely technology driven e.g. the desire to keep beam current sufficiently low to avoid severe space charge issues resulting in the need of parallel front-ends. After the technology choices had been made, the final set of requirements resulting in the ESS 2013 lattice design were derived in an iterative process with cost and beam dynamics issues being the two main parameters. In large, cost was pushed to a minimum with the calculated emittance growth along the linac being used as a quality indicator. The lattice was chosen following standard beam dynamics rules and optimized considering space charge issues, space charge neutralization phenomena, alignment errors, longitudinal field flatness and time stability and magnetic field quality. I will in this presentation review the ESS facility optimization with some focus on cost and robustness and give an overview of the many beam dynamics issues which were considered in this process. | ||
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Slides MOYLR06 [13.327 MB] | |