Preliminary Design of a Cryogen-Free 6.6 T Superconducting Wavelength Shifter

A cryogen-free 6.6 T Superconducting Wavelength Shifter (SWLS) is currently being designed to produce photons with a critical energy higher than 39 keV for the future hard X-ray beamline of Sirius, a new 4th generation Brazilian light source. The magnet is based on NbTi coils and holmium poles with...

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Published in:IEEE transactions on applied superconductivity Vol. 34; no. 5; pp. 1 - 5
Main Authors: Galvez, Juan Gansauskas, Vianna, A. A., Pereira, A. G. C., Limeira, B. E., Iwamoto, B. H., de Oliveira, Felipe Santiago Pereira, Saretti, G. G., Brunheira, G. O., Cavassani, I. B., Citadini, J. F., Silva, J. H. R., Oliveira, L. P., Potye, M., Martins, P. H. S., Freitas, P. P. S., Seraphim, R. M., Defavari, R., Fraga, S. C. Z., Rocha, T. M., Soares, V., Ricardo, W. E., Contesini, W.
Format: Journal Article
Language:English
Published: New York IEEE 01-08-2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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Summary:A cryogen-free 6.6 T Superconducting Wavelength Shifter (SWLS) is currently being designed to produce photons with a critical energy higher than 39 keV for the future hard X-ray beamline of Sirius, a new 4th generation Brazilian light source. The magnet is based on NbTi coils and holmium poles with an operating margin above 20% at 5 K. A magnetic gap of 7 mm in the central pole was required to achieve a narrow peak field profile (FWHM = 29.8 mm), which did not affect the emittance of the machine. The device is designed to reuse several parts and equipment from a deactivated Superconducting Wiggler. The preliminary design of the SWLS is presented, focusing on electromagnetic, mechanical, thermal, and quench protection proposals.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2023.3346851