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| TUPAF062 |
Parametric Study of the Beam Footprint Characteristics on the ESS Target |
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- R. Miyamoto
ESS, Lund, Sweden
- H.D. Thomsen
ISA, Aarhus, Denmark
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The beam delivery system of the ESS linac utilizes fast oscillating triangular wave dipole magnets of two transverse planes (raster magnets) to spray each long beam pulse (2.86 ms) over a rectangular cross-check pattern on the target. The characteristics of this beam footprint on the target are determined by the amplitudes of the raster magnets, RMS sizes of the beam and, in some case, the tail of the beam profile and have to satisfy the requirements from the target for the peak density as well as the fraction outside of a given rectangular boundary. This paper presents approximate closed-form expressions for the characteristics of the beam footprint and, based on the presented expressions, explores the parameter space of the raster magnets and beam parameters for achieving the optimal characteristics of the beam footprint.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2018-TUPAF062
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