Speaker
Rogelio Tomas
(European Organization for Nuclear Research)
Description
During loss maps performed with beam at injection energy in the LHC with the high octupole and chromaticity settings used for multi-train operation, large beam losses were observed at an injection protection device (TDIS). Although these losses did not present a threat to machine operation or protection, reducing them is of high importance to improve machine performance. Various strategies were developed to mitigate these losses, such as octupole setting optimization at constant Landau damping and vertical tune reduction. Further optimization of collimator settings is also considered. Results of experimental tests and first simulations are reported here together with considerations for the future.
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Primary author
Rogelio Tomas
(European Organization for Nuclear Research)
Co-authors
Andrea Calia
(European Organization for Nuclear Research)
Daniele Mirarchi
(European Organization for Nuclear Research)
Delphine Jacquet
(European Organization for Nuclear Research)
Ewen Maclean
(European Organization for Nuclear Research)
Filippo Ziliotto
(European Organization for Nuclear Research)
Frederik Van der Veken
(European Organization for Nuclear Research)
Konstantinos Paraschou
(European Organization for Nuclear Research)
Laurent Deniau
(European Organization for Nuclear Research)
Marco D'Andrea
(European Organization for Nuclear Research)
Sofia Kostoglou
(European Organization for Nuclear Research)
Stefano Redaelli
(European Organization for Nuclear Research)
Tobias Persson
(European Organization for Nuclear Research)
