Title :
Test Results of a Planar Superconducting Undulator for the Advanced Photon Source
Author :
Ivanyushenkov, Y. ; Doose, C. ; Fuerst, J. ; Hasse, Q. ; Kasa, M. ; Shiroyanagi, Y.
Author_Institution :
Argonne Nat. Lab., Lemont, IL, USA
Abstract :
The first superconducting planar undulator (SCU0) at the Advanced Photon Source (APS) has been built with the goal of providing the APS users with higher photon fluxes at higher photon energies. The undulator magnetic structure is wound with NbTi superconducting wire. The magnet is indirectly cooled by liquid helium circulating in a closed circuit. The cooling of the helium circuit, the current leads, and the thermal shields are provided by four cryocoolers. After a rigorous stand-alone cold test the undulator has been installed into the APS storage ring. The results of the SCU0 cold test are presented in this paper.
Keywords :
helium; niobium alloys; storage rings; superconducting tapes; titanium alloys; wigglers; APS storage ring; Advanced Photon Source; NbTi; SCU0 cold test; cryocoolers; current leads; liquid helium; planar superconducting undulator; superconducting wire; thermal shields; undulator magnetic structure; Heating; Helium; Magnetic field measurement; Magnetic noise; Magnetic shielding; Superconducting magnets; Undulators; Storage rings; superconducting magnets; synchrotron radiation; undulators;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2014.2303211
