The goal of this seminar is to encourage interaction between groups, act as an open forum to share ideas, achievements, and results, promote collaboration, communicate what APS personnel are doing and to educate people. Talks can be projects, tasks, ideas, etc. that are new, unfinished, ongoing as well as fully developed. This seminar is very informal and does not require a fully formatted presentation.
To suggest a speaker or to volunteer, please contact Geoff Waldschmidt
|Next Seminar: Wednesday, October 17, 2018 @ 11:00 am, Conf. Rm. A1100|
TITLE: Cryostat Design for the APS-U SCUs
SPEAKER: Yuko Shiroyanagi, ASD-MD
ABSTRACT: Currently, two planar superconducting undulators (SCU) and one helical superconducting undulator are in operation at the APS storage ring. For all these cryostats, the magnets are cooled independently from the beam chamber and a magnet/mold is cooled by LHe in the Helium channel which is cooled by cryocoolers. Based on these design and operational experiences, a new APSU-SCU cryostat is being developed. FEA model of SCU cryostats is developed which includes all the heat source and cooling powers provided by cryocooler load maps. In this talk, I will present a method to calculate an excess cooling power first, then this method is bench marked by FEA model of the 1st generation (SCU1) cryostat. Secondly, FEA model of the 2nd generation (HSCU) cryostat is presented and calculation and measurement are compared. Finally, current status of the FEA model of APS-SCU cryostat is presented.
|2018 ASD Seminars|
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