Speaker
TingYi Chung
(NSRRC)
Description
In order to meet the requirement for rapid switching between left- and right-handed circularly polarized light, we have designed and constructed an undulator incorporating a combination of permanent magnets and electromagnets. The 0.5-meter-long prototype undulator generates a horizontal magnetic field through four rows of permanent magnets, each with adjustable horizontal gaps, while the vertical magnetic field is provided by electromagnets. By switching the polarity of the current, the magnetic field is capable of alternately switching between left- and right-handed circular polarization of light. The paper shows the design considerations, fabrication process, and presents the current measurement results.
Author
TingYi Chung
(NSRRC)
Co-authors
Jui-Che Huang
(National Synchrotron Radiation Research Center)
Jyh-Chyuan Jan
(NSRRC)
Fu-Yuan Lin
(NSRRC)
Mr
Hsiung Chen
(NSRRC)
Hui-Huang Chen
(NSRRC)
