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Spectrum of coherent transition radiation generated by a modulated electron beam

G. A. Naumenko^a, A. P. Potylitsyn^a, P. V. Karataev^b, M. A. Shipulya^c, V. V. Bleko<sup>c

a</sup> Tomsk Polytechnic University, Tomsk, Russia
^b John Adams Institute for Accelerator Science, Royal Holloway University of London, Egham, Surrey, UK
^c RASA CenterTomsk Polytechnic University, Tomsk, Russia

Abstract: The spectrum of coherent transition radiation has been recorded with the use of a Martin–Puplett interferometer. It has been shown that the spectrum includes monochromatic lines that are caused by the modulation of an electron beam with the frequency of an accelerating radio-frequency field $\nu_{\text{RF}}$ and correspond to resonances at $\nu_k=k\cdot \nu_{\text{RF}}$, $k\leq 10$. To determine the length of an electron bunch from the measurement of the spectrum from a single bunch, it is necessary to use a spectrometer with the resolution $\Delta\nu_{\text{sp}}>\nu_{\text{RF}}$.

Received: 13.06.2017

DOI: 10.7868/S0370274X17140119

 English version: Journal of Experimental and Theoretical Physics Letters, 2017, 106:2, 127–130

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