TY - GEN
T1 - Enhancement of radiative energy extraction in an FEL oscillator by post-saturation beam energy ramping
AU - Marks, H. S.
AU - Gover, A.
AU - Lurie, Yu
AU - Dyunin, E.
N1 - Publisher Copyright:
© Proceedings of the 38th International Free-Electron Laser Conference, FEL 2017. All rights reserved.
PY - 2017
Y1 - 2017
N2 - We present results of experiments and simulations showing a greater than 50% increase in post-saturation radiation power extraction from a Free Electron Laser oscillator based on an electrostatic accelerator. Electrostatic accelerator free electron laser oscillators have the potential for CW operation. Present day operating oscillators rely on long pulses of electrons, tens of microseconds in duration, they generate correspondingly long radiation pulses, at a single longitudinal mode after a mode competition process. The post-saturation power extraction enhancement process is based on temporal tapering (up-ramping) of the beam energy, enabling a large synchrotron oscillation swing of the trapped electron bunches in passage along the interaction length. We further discuss the theoretical limits of the temporal tapering efficiency enhancement process.
AB - We present results of experiments and simulations showing a greater than 50% increase in post-saturation radiation power extraction from a Free Electron Laser oscillator based on an electrostatic accelerator. Electrostatic accelerator free electron laser oscillators have the potential for CW operation. Present day operating oscillators rely on long pulses of electrons, tens of microseconds in duration, they generate correspondingly long radiation pulses, at a single longitudinal mode after a mode competition process. The post-saturation power extraction enhancement process is based on temporal tapering (up-ramping) of the beam energy, enabling a large synchrotron oscillation swing of the trapped electron bunches in passage along the interaction length. We further discuss the theoretical limits of the temporal tapering efficiency enhancement process.
UR - https://www.scopus.com/pages/publications/85086396213
U2 - 10.18429/JACoW-FEL2017-TUC04
DO - 10.18429/JACoW-FEL2017-TUC04
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AN - SCOPUS:85086396213
T3 - Proceedings of the 38th International Free-Electron Laser Conference, FEL 2017
SP - 244
EP - 246
BT - Proceedings of the 38th International Free-Electron Laser Conference, FEL 2017
A2 - Bishofberger, Kip
A2 - Bruce, Carlsten
A2 - Schaa, Volker RW
T2 - 38th International Free-Electron Laser Conference, FEL 2017
Y2 - 20 August 2017 through 25 August 2017
ER -