Speaker
Yuko Shiroyanagi
(Argonne National Laboratory)
Description
A cryocooler-cooled superconducting undulator (SCU0) has been operating in the Advanced Photon Source (APS) storage ring since January of 2013. Based on lessons learned from the construction and operation of SCU0, the 2nd superconducting undulator (SCU1) has been built and cold tested stand-alone. An excess cooling capacity measurement and static heat load analysis show a large improvement of cryogenic performance of SCU1 compared with SCU0. ANSYS-based thermal analysis of these cryomodules incorporating all the cooling circuits was completed. Comparisons between measured and calculated temperatures at the three operating conditions of the SCU0 cryomodule (static, beam heat only, beam heat and magnet current) will be presented.
*Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.*
Author
Yuko Shiroyanagi
(Argonne National Laboratory)
Co-authors
Charles Doose
(Argonne National Laboroatory)
Joel Fuerst
(ANL)
Dr
Katherine Harkay
(Argonne National Laboratory)
Matthew Kasa
(Argonne National Laboratory)
Quentin Hasse
(Argonne National Laboratory)
Dr
Yury Ivanyushenkov
(Argonne National Laboratory)
