Design of the Ess RFQs and Chopping Line
R. Duperrier, R. Ferdinand, P. Gros, J-M. Lagniel, N. Pichoff, D., Uriot, CEA-Saclay, DSM-DAPNIA-SEA
TL;DR
This paper presents an optimized design of the ESS RFQs and chopping line, achieving high beam transmission and precise bunch chopping for the ESS linac, ensuring beam quality and safety margins.
Contribution
It introduces a new optimized RFQ and chopping line design for the ESS linac, improving beam transmission and chopping precision.
Findings
First RFQ transmits 99.7% of beam up to 2 MeV.
Chopping line with two choppers enables perfect bunch separation.
Second RFQ accelerates particles up to 5 MeV with near 100% transmission.
Abstract
The chopping line is a critical part of the ESS linac in term of technical realisation of the choppers and preservation of the beam qualities. A new optimised design of the ESS RFQs and chopping lines is reported. The beam dynamics has been optimised with H- beam currents up to 100-mA to have safety margin with respect to the ESS goals. The first RFQ transmits almost 99.7% of the beam up to 2 MeV. The line with two choppers allows a perfect chopping between 2 bunches. The second RFQ accelerates the particles up to 5 MeV with a transmission close to 100%.
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Taxonomy
TopicsParticle accelerators and beam dynamics · Superconducting Materials and Applications · Particle Accelerators and Free-Electron Lasers