Y. Miyauchi et al., PERFORMANCE OF AN UNDULATOR FOR VISIBLE AND UV FELS AT THE FELI, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 375(1-3), 1996, pp. 42-45
A permanent magnet undulator for visible and UV FEL was constructed an
d installed at the FELI. The period length is 4 cm, period number is 6
7, and total length is 2.68 m. Its K-value covers 0.4-1.97, and expect
ed wavelength covers 0.25-1.2 mu m. This report describes its design p
arameter, magnet design and tuning, and mechanical design.