A New Superconducting Undulator Cryostat for the APS Upgrade

Conference · Wed Jan 01 00:00:00 EST 2020

DOI:https://doi.org/10.1088/1757-899X/755/1/012126· OSTI ID:1756924

Anliker, E.; Fuerst, J.; Hasse, Q.; Ivanyushenkov, Y.; Kasa, M.; Shiroyanagi, Y.

The Advanced Photon Source (APS) is in the midst of a major facility upgrade including both a new electron storage ring (SR) and many new insertion devices ( IDs) providing x-ray photon beams to a new suite of experimental end stations. Included among the new IDs are four 4.8-meter superconducting undulator (SCU) cryostats, each containing two 1.8-meter planar undulator magnets operating at 4.2 K in either a phase shifted or canted configuration. We describe a new, compact cryocooler-based cryostat design which supports the magnets and associated subsystems and also fits the space constraints of the SR ID straight sections. The design is an evolution of earlier single-magnet 2-meter cryostats, retaining some subsystem commonality while incorporating lessons learned and several features unique to the challenge of supporting two independently operable undulator magnets in a single device.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1756924
• Resource Relation: Conference: 2019 Cryogenic Engineering Conference and International Cryogenic Materials Conference, 07/21/19 - 07/25/19, Hartford, CT, US
• Country of Publication: United States
• Language: English