{"title":"Oscillation damper for misaligned witness in plasma wakefield accelerator","authors":"K. V. Lotov, I. Yu. Kargapolov, P. V. Tuev","doi":"arxiv-2409.12041","DOIUrl":null,"url":null,"abstract":"If a laser- or particle beam-driven plasma wakefield accelerator operates in\nthe linear or moderately nonlinear regime, injecting an externally produced\nparticle bunch (witness) to be accelerated may encounter an alignment problem.\nWitness alignment tolerances can be relaxed by using a damper, an additional\nparticle bunch produced by the same injector and propagating at a submillimeter\ndistance ahead of the witness. If misaligned, the damper perturbs the wakefield\nin such a way that the witness shifts on-axis with no quality loss.","PeriodicalId":501274,"journal":{"name":"arXiv - PHYS - Plasma Physics","volume":"10 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Plasma Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.12041","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
If a laser- or particle beam-driven plasma wakefield accelerator operates in
the linear or moderately nonlinear regime, injecting an externally produced
particle bunch (witness) to be accelerated may encounter an alignment problem.
Witness alignment tolerances can be relaxed by using a damper, an additional
particle bunch produced by the same injector and propagating at a submillimeter
distance ahead of the witness. If misaligned, the damper perturbs the wakefield
in such a way that the witness shifts on-axis with no quality loss.
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