A Superconducting Switch for Insertion Devices with Variable Period Length

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• 作者：T. Holubek ; T. Baumbach ; S. Casalbuoni ; S. Gerstl ; A. Grau ; M. Hagelstein ; D. Saez de Jauregui ; C. Boffo ; W. Walter
• 关键词：Insertion devices ; undulator ; wiggler ; superconducting switch ; NbTi
• 刊名：Physics Procedia
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：36
• 期：Complete
• 页码：1093-1097
• 全文大小：980 K

文摘

Superconducting insertion devices (IDs) are very attractive for synchrotron light sources since they offer the possibility to enhance the tuning range and functionality significantly by period length switching. Period length switching can be realized by reversing the current in a separately powered subset of the superconducting windings.So far, the first demonstration mock-up coil allowing period length tripling was fabricated and tested successfully. Here, we report on the feasibility of superconducting switches built to operate in a liquid helium bath and under conduction cooled conditions.