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Communication Dans Un Congrès Année : 2022

Three years of operation of the SPIRAL2 SC LINAC- RF feedback

Résumé

The superconducting LINAC of SPIRAL2 at the GANIL facility has been in operation since October 2019. The accelerator uses 12 low beta and 14 high beta supercon-ducting quarter wave cavities, cooled at 4°K, working at 88 MHz. The cavities are operated at a nominal gradient of 6.5 MV/m and are independently powered by a LLRF and a solid-state amplifier, protected by a circulator. Pro-ton and deuteron beam currents can reach 5 mA and beam loading perturbation is particularly strong on the first cavities, as they are operated at field levels much lower than the nominal one. This paper presents a feedback after three years of oper-ation, focuses on the RF issues, describing problems and required improvement on the low level, control and pow-er systems
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hal-03839867 , version 1 (22-11-2022)

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Marco Di Giacomo, Muhammad Aburas, Pierre-Emmanuel Bernaudin, Frédéric Bouly, Olivier Delahaye, et al.. Three years of operation of the SPIRAL2 SC LINAC- RF feedback. LINAC 2022 - 31st Linear Accelerator Conference, Aug 2022, Liverpool, United Kingdom. pp.MOPOPA15, ⟨10.18429/JACoW-LINAC2022-MOPOPA15⟩. ⟨hal-03839867⟩
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