Magnetic Field Optimization of an In-Vacuum Undulator at NSLS-II Transactions on Applied Superconductivity

Autor:	Marco Musardo, Toshi Tanabe, Daved Harder, Peter Cappadoro, C.Rhein, Todd Corwin, J. Rank
Rok vydání:	2020
Předmět:	Superconductivity Materials science business.industry Demagnetizing field Undulator Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Optics Beamline Electrical and Electronic Engineering National Synchrotron Light Source II business Image resolution Storage ring
Zdroj:	IEEE Transactions on Applied Superconductivity. 30:1-4
ISSN:	2378-7074 1051-8223
DOI:	10.1109/tasc.2020.2965477
Popis:	A 3.0 m long In-Vacuum Undulator (IVU) is employed at the National Synchrotron Light Source II (NSLS-II) for the Hard X-ray Nanoprobe (HXN) beamline providing structural and X-ray fluorescence imaging with world-leading spatial resolution. On July 1 st 2018 a gearbox shaft in the gap drive train assembly sheared due to corrosion fatigue caused by stress due to mechanical misalignment. The device was extracted from the storage ring and measured. The magnetic field measurements detected a degradation of the magnetic performance as well as a localized demagnetization of the magnetic modules of the first 3 upstream periods. This paper describes the mechanical repairs and the magnetic phase shimming optimization implemented to restore the spectral performance of the device.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32ec8ccb9bd1e6f372944e23f283b591 https://doi.org/10.1109/tasc.2020.2965477 Zobrazit plný text záznamu