Abstract

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.

Details

Title
A New Superconducting Undulator Cryostat for the APS Upgrade
Author
Anliker, E 1 ; Fuerst, J 2 ; Hasse, Q 1 ; Ivanyushenkov, Y 1 ; Kasa, M 1 ; Shiroyanagi, Y 1 

 Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA 
 SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA 
Publication year
2020
Publication date
Mar 2020
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2562068972
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.