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Field Measurement System in Vacuum for a Cryogenic Permanent-Magnet Undulator at NSRRC

A recent trend toward building an undulator for a mid-energy storage ring is a small period length and a large magnetic field, which typically requires a vacuum and cryogenic environment. To measure the magnetic field of such undulators, we designed and fabricated a Hall-probe measurement system in...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2016-06, Vol.26 (4), p.1-4
Main Authors: Yang, Chin-Kang, Chang, Cheng-Hsing, Chen, Sei-Da, Lin, Yu-Yung, Hwang, Ching-Shiang
Format: Article
Language:English
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Summary:A recent trend toward building an undulator for a mid-energy storage ring is a small period length and a large magnetic field, which typically requires a vacuum and cryogenic environment. To measure the magnetic field of such undulators, we designed and fabricated a Hall-probe measurement system in vacuum. All components of this system are installed in a vacuum chamber and are compatible with a high-vacuum and a low-temperature environment; the deployment of all parts is designed to fit a cryogenic permanent-magnet undulator that is now under construction at the National Synchrotron Radiation Research Center. The details of the design, completed fabrication, and test results are presented in this paper.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2016.2518488