Kyoto IAE, Kyoto
KAERI, Daejon
* S. Sasaki, Proceedings of 2005 PAC, pp. 982-984 (2005)
| Paper | Title | Page |
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| THAAU03 | A Bulk High-Tc Superconductor Staggered Array Undulator | 473 |
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Development of short-period undulators is one of the most intensive interests in FEL research, with reduced energy requirements and accordingly reduced cost for electron linacs, which is supposed to expand the use of FELs in diverse applications. In this context, we propose use of high-Tc superconducting magnets in the hybrid staggered-array undulator configuration*. The reason for the choice of the configuration is that magnetization of the superconducting magnets can be performed by a single solenoid, since the magnetization direction of the magnets to be set are all in the axial direction. The present undulator is expected to show such advantages as a short period with high magnetic induction by the superconducting magnets, and a rapid control of undulator fields and the resultant FEL wavelength by means of the solenoid current. In this paper, we discuss the results from characteristic analyses to show the potential advantages of the present undulator, by the use of a magnetic field solver taking into account the distinctive magnetic field distribution induced by high-Tc superconducting magnets. Also presented are the measurement results of undulator fields in a prototype.
* S. Sasaki, Proceedings of 2005 PAC, pp. 982-984 (2005) |
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