Design, Construction, and Performance Testing of a 6.5 T Superconducting Wavelength Shifter

Hwang, C. S.; Wang, B.; Wahrer, B.; Taylor, C.; Chen, C.; Juang, T.; Lin, Fei; Jan, J.C.; Chang, Chin-Chun; Chen, H.H.; Huang, Min‐Jie; Hsu, K.T.; Hsiung, G. Y.

doi:10.1109/tasc.2007.899830

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…The other issue of the EPU is that the electron trajectory in the EPU is two dimensions in the transverse plane. Therefore, the magnetic fields are integrated along the true wiggler trajectory x-y plane [9] (we define as s-axis) and straight trajectory (y-axis), respectively. Fig.…”

Section: A Magnet Design and Field Calculationmentioning

confidence: 99%

Design and Performance of a New Magnetized Magnet Block on EPU Structure

Hwang

Chang

Lin

et al. 2008

IEEE Trans. Appl. Supercond.

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A prototype of an Apple-II elliptically polarized undulator (EPU4.6), of length 0.46 m, has been constructed to test the performance of the newly designed magnet block, which was magnetized at a tilt angle 10 . The magnet design and various mechanism analysis are performed to clarify the error source of multipole field components. Good end pole design in the EPU4.6 revealed the variation of the first integral field strength as function of gap and phase is minimized. Shimming algorithm had been used to improve the field quality and phase error. We report here the scheme of the magnetized block arrangement, an analysis of the design mechanism, the end pole design, field shimming and the final test performance using the Hall-probe mapping system.Index Terms-APPLE-II, elliptically polarized undulator, end pole design, magnetic field measurement.

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Section: A Magnet Design and Field Calculationmentioning

confidence: 99%