TY - GEN
T1 - Spontaneous coherent radiation of stabilized dense electron bunches
AU - Oparina, Yu S.
AU - Savilov, A. V.
AU - Bratman, V. L.
AU - Lurie, Yu
AU - Balal, N.
N1 - Publisher Copyright:
Content from this work may be used under the terms of the CC BY 3.0 licence (© 2019). Any distribution of this work must maintain attribution to the author(s).
PY - 2019
Y1 - 2019
N2 - Modern electron sources allow formation of dense bunches with energies of 3–6 MeV, ps pulse durations, and charges of up to 1 nC. Such bunches can be used for the realization of relatively simple terahertz sources based on spontaneous coherent radiation. This regime is realized when the effective bunch phase size doesn’t exceed 2p. Power and duration of the process of such type of emission are limited due to an increase in the bunch length under the Coulomb repulsion. This complicates the effective implementation of the regime of spontaneous coherent radiation for dense bunches. Therefore, special methods for stabilization of the length of the bunch should be used. We describe several methods of the stabilization used in different systems (cyclotron radiation, emission in the traditional undulator system, and emission in the “negative-mass” undulator system).
AB - Modern electron sources allow formation of dense bunches with energies of 3–6 MeV, ps pulse durations, and charges of up to 1 nC. Such bunches can be used for the realization of relatively simple terahertz sources based on spontaneous coherent radiation. This regime is realized when the effective bunch phase size doesn’t exceed 2p. Power and duration of the process of such type of emission are limited due to an increase in the bunch length under the Coulomb repulsion. This complicates the effective implementation of the regime of spontaneous coherent radiation for dense bunches. Therefore, special methods for stabilization of the length of the bunch should be used. We describe several methods of the stabilization used in different systems (cyclotron radiation, emission in the traditional undulator system, and emission in the “negative-mass” undulator system).
UR - https://www.scopus.com/pages/publications/85086261463
U2 - 10.18429/JACoW-FEL2019-THP024
DO - 10.18429/JACoW-FEL2019-THP024
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AN - SCOPUS:85086261463
T3 - Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019
SP - 643
EP - 646
BT - Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019
T2 - 39th International Free-Electron Laser Conference, FEL 2019
Y2 - 26 August 2019 through 30 August 2019
ER -