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| TUPH09 |
Spontaneous Radiation of High-order Magnetic Field Undulator |
146 |
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- T. Wei
CAEP/IFP, Mainyang, Sichuan, People's Republic of China
- P. Li
CAEP/IAE, Mianyang, Sichuan, People's Republic of China
- Y. Li, J. Pflüger
XFEL. EU, Schenefeld, Germany
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Based on the purpose of concision, nearly all the undulator radiation formulas have maken an assumption that the guiding magnetic field is a sinusoid wave. The assumption is consistent with the truth if the ratio of undulator gap to period length is large enough. However, high-order magnetic field exists widely in most undulators, especially those with long period length and short gap. This paper will derive the radiation output equations of high-order magnetic field undulator, what's more, the formulas are validated through numerical simulation with code SPECTRA.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-SAP2017-TUPH09
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