Wave particle Cherenkov interactions mediated via novel materials

A. Hopper, R. Seviour

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


Currently there is an increasing interest in dielectric wall accelerators. These work by slowing the speed of an EM wave to match the velocity of a particle beam, allowing wave-beam interactions, accelerating the beam. However conventional dielectric materials have limited interaction regions, so wave-beam energy transfer is minimal. In this paper we consider Artificial Materials (AMs), as slow wave structures, in the presence of charged particle beams to engineer Inverse-Cherenkov acceleration. AMs are periodic constructs whose properties depend on their subwavelength geometry rather than their material composition, and can be engineered to give an arbitrary dispersion relation. We show that Metamaterials, one example of an AM, can mediate an Inverse-Cherenkov interaction, but break down in high power environments due to high absorption. We consider AMs with low constitutive parameters and show they can exhibit low absorption whilst maintaining the ability to have a user defined dispersion relation, and mediate a wavebeam interaction leading to Inverse-Cherenkov acceleration.

Original languageEnglish
Title of host publicationIPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference
PublisherJoint Accelerator Conferences Website (JACoW)
Number of pages3
ISBN (Electronic)9783954501472
Publication statusPublished - 2016
Event7th International Particle Accelerator Conference - Busan, Korea, Republic of
Duration: 8 May 201613 May 2016
Conference number: 7


Conference7th International Particle Accelerator Conference
Abbreviated titleIPAC 2016
Country/TerritoryKorea, Republic of
Internet address


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