Experimental results of a YBCO bulk superconducting undulator magnetic optimization

Marco Calvi; Alexandre Arsenault; Xiaoyang Liang; Thomas Schmidt; Anthony R. Dennis; John H. Durrell; Carlos Gafa; Andrew Sammut; Nicholas Sammut; Mark D. Ainslie; Ryota Kinjo; Kai Zhang; Sebastian Hellmann

doi:10.1103/PhysRevAccelBeams.27.100702

Experimental results of a YBCO bulk superconducting undulator magnetic optimization

Marco Calvi, Alexandre Arsenault, Xiaoyang Liang, Thomas Schmidt, Anthony R. Dennis, John H. Durrell, Carlos Gafa, Andrew Sammut, Nicholas Sammut, Mark D. Ainslie, Ryota Kinjo, Kai Zhang, Sebastian Hellmann

DOI 10.1103/PhysRevAccelBeams.27.100702 · Physical Review Accelerators and Beams

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Abstract

The magnetic field optimization of RE-Ba-Cu-O (REBCO, RE=rare earth) bulk superconducting undulators is a fundamental step toward their implementation in an accelerator driven photon source, like a synchrotron or a free electron laser. In this article, we propose a sorting algorithm to reduce the undulator’s phase error based on the reconstruction of the trapped current inside the bulks of a staggered array undulator. The results obtained with a YBCO short prototype field-cooled down to 10 K in a 10 T magnetic field are reported. Finally, its performance is critically discussed in light of 2D magnetic field maps of its individual components, obtained at LN2 after the magnetization tests.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown