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19 April 2024 |
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Article overview
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Effect of pulsed hollow electron-lens operation on the proton beam core in LHC | | Miriam Fitterer
; Giulio Stancari
; Alexander Valishev
; | | Date: |
8 Nov 2016 | | Abstract: | Collimation with hollow electron beams is currently one of the most promising
concepts for active halo control in the HL-LHC. In order to further increase
the diffusion rates for a fast halo removal as e.g. desired before the squeeze,
the electron lens (e-lens) can be operated in pulsed mode. In case of profile
imperfections in the electron beam the pulsing of the e-lens induces noise on
the proton beam which can, depending on the frequency content and strength,
lead to emittance growth. In order to study the sensitivity to the pulsing
pattern and the amplitude, a beam study (machine development MD) at the LHC has
been proposed for August 2016 and we present in this note the preparatory
simulations and estimates. | | Source: | arXiv, 1611.2678 | | Services: | Forum | Review | PDF | Favorites | |
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