Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2009, Vol. 20 ›› Issue (1): 5-10 doi: 10.13538/j.1001-8042/nst.20.5-10

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Spontaneous radiation from relativistic electrons in a tapered Apple-II undulator

CHEN Mingzhi HE Jianhua*   

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
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CHEN Mingzhi, HE Jianhua. Spontaneous radiation from relativistic electrons in a tapered Apple-II undulator.Nuclear Science and Techniques, 2009, 20(1): 5-10     doi: 10.13538/j.1001-8042/nst.20.5-10

Abstract:

This paper presents most properties of radiation from a tapered Apple-II undulator. The study demonstrates that tapering an Apple-II undulator can broaden the harmonic bandwidth and the performance of polarization is also excellent at the broadened energy range. So Apple-II undulator can be tapered to provide more convenience for energy scan experiment.

Key words: Apple-II undulator, Tapered undulator, Variable polarization, Simulation calculation