Coherent Cherenkov radiation from a short bunch passing near a target and possibility of a bunch length diagnostics

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

4 Citations (Scopus)


A noninvasive technique to determine a sub-mm length of electron bunches (rms < 100 um) based on a measurement of the coherent Cherenkov radiation spectrum in THz range is proposed. The radiation is generated while electron bunch moves in a vacuum near dielectric target. If the optical properties and geometry of a target are chosen in order to achieve a low absorption with a dispersion allowing expanding the Cherenkov cone, such target may be considered as the natural Cherenkov prism. We demonstrate a feasibility of using of CsI prism for measurement of a bunch length in the range 50-200 um for Lorentz factor γ = 100. We also measured coherent Cherenkov radiation power from Teflon target generated by the 6.1 MeV bunched electron beam with bunch rms length 1.2 mm. CChR seems to be a promising radiation mechanism for a new beam diagnostics technique.

Original languageEnglish
Title of host publicationIPAC 2010 - 1st International Particle Accelerator Conference
Number of pages3
Publication statusPublished - 2010
Event1st International Particle Accelerator Conference, IPAC 2010 - Kyoto, Japan
Duration: 23 May 201028 May 2010


Other1st International Particle Accelerator Conference, IPAC 2010


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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