Tunable, monochromatic x rays using the internal beam of a betatron

V. V. Kaplin, S. R. Uglov, O. F. Bulaev, V. J. Goncharov, A. A. Voronin, M. A. Piestrup, C. K. Gary, N. N. Nasonov, M. K. Fuller

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Tunable, monochromatic x rays from thin radiators mounted inside a betatron have been observed. Parametric x-ray radiation (PXR) was generated by 33-MeV electrons passing multiple times through three radiators: a 43-μm-thick Si crystal, a 400-μm-thick graphite crystal, or a 310-layered-pair (W and B 4C, d=14.86Å) multilayer. The pulse-height spectrum of the radiation (5 to 30 keV) was obtained and was tuned by rocking the crystal or multilayer relative to the electron-beam direction. The experimental results appear to follow theoretical predictions for PXR emission with some modification required for the curved trajectory of the electrons.

Original languageEnglish
Pages (from-to)3427-3429
Number of pages3
JournalApplied Physics Letters
Issue number18
Publication statusPublished - 6 May 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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