Simulating Novel Collimation Schemes for High-Luminosity LHC With Merlin++

S.C. Tygier, R.B. Appleby, R.J. Barlow, S. Rowan

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    Due to the large stored beam en­ergy in the HL-LHC new col­li­ma­tion tech­nolo­gies must be used to pro­tect the ma­chine. Ac­tive halo con­trol of the pro­ton beam halo with a Hol­low Elec­tron Lens can give a kick to pro­tons at the edge of the beam with­out ef­fect­ing the core. Var­i­ous modes of op­er­a­tion are pos­si­ble for ex­am­ple the elec­tron lens can have a con­tin­u­ous cur­rent or it can be pulsed to dif­fer­ent am­pli­tudes for each pas­sage of the pro­ton beam. In this ar­ti­cle we use Mer­lin++ sim­u­la­tions to show the per­for­mance of these modes for HL-LHC pa­ra­me­ters. We also pre­sent re­cent sim­u­la­tions com­par­ing scat­ter­ing mod­els in Mer­lin++.
    Original languageUndefined
    Title of host publicationProc. 10th International Partile Accelerator Conference (IPAC'19), Melbourne, Australia, 19-24 May 2019
    Place of PublicationGeneva, Switzerland
    Number of pages4
    ISBN (Print)978-3-95450-208-0
    Publication statusPublished - 1 Jun 2019

    Publication series

    NameInternational Partile Accelerator Conference
    PublisherJACoW Publishing


    • proton, scattering, collimation, simulation, electron

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