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https://doi.org/10.3938/NPSM.69.1194
Characteristics of Phase Space in a 2D Time-dependent Free-electron Laser with a Two-section Wiggler
New Phys.: Sae Mulli 2019; 69: 1194~1199
Published online November 29, 2019;  https://doi.org/10.3938/NPSM.69.1194
© 2019 New Physics: Sae Mulli.

Soon-Kwon NAM*, TaeHoon KIM

Department of Physics, Kangwon National University, Chuncheon 24341, Korea
Correspondence to: snam@kangwon.ac.kr
Received July 18, 2019; Revised August 30, 2019; Accepted October 2, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
We developed an extended 2D time-dependent free-electron laser with two-section wiggler. We studied the intensity of radiation and the phase space by using an extended 2D time-dependent simulation code that we developed. We used a 1$ ^{st}$ wiggler length of 0.6 m, 2$^{nd}$ wiggler length of 1.0 m wigglers were 0.6 and 1.0 m, respectively, and these of the quadrupoles were 0.4 m. The characteristics of the phase space of the electron and the energy distributions were studied for the pass number at various times. The intensity of radiation and the phase space were analyzed at various times from -10 $\mu$s to 10 $\mu$s and for various detuning parameters. The radiation intensity was found to be optimized at a detuning parameter of 0.4% at $t$ = 1.3 $\mu$s by using a 2D time-dependent FEL code with a two-section wiggler.
PACS numbers: 41.60.Cr
Keywords: Department of Physics, Kangwon National University, Chuncheon 24341, Korea


November 2019, 69 (11)
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