Observation of soft X-ray Cherenkov radiation in Al

S.R. Uglov, Artem Vukolov, Valery Kaplin, L. Sukhikh, Pavel Karataev

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The soft X-ray radiation generated by 5.7 MeV electrons from both an Al foil and a Mylar film in forward direction was experimentally studied. A narrow specific directivity, an ultra-narrow spectral bandwidth and a good consistency between the experiment and theory prove that the Cherenkov radiation (CR) with photon energy near the L-edge of absorption in Al was observed. The results demonstrate that the CR spectral-angular properties and the absolute photon yield can be described well enough using Pafomov's theoretical model and Henke's refractive index database, which is essential for all practical applications.
Original languageEnglish
Article number34002
Pages (from-to)1-6
Number of pages6
JournalEurophysics Letters
Issue number3
Publication statusPublished - 5 Jul 2017

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