Development of a short-period superconducting undulator at APS

A planar superconducting undulator (SCU) with a period of 15 mm is under development at the Advanced Photon Source (APS). The intended users require a photon energy that can be tuned from 19 to 28 keV for inelastic X-ray scattering studies. The SCU design consists of two low-carbon-steel cores that...

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Bibliographic Details
Published inProceedings of the 2003 Particle Accelerator Conference Vol. 2; pp. 1020 - 1022 Vol.2
Main Authors Kim, S.H., Dejus, R.J., Doose, C., Kustom, R.L., Moog, E.R., Petra, M., Thompson, K.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Current density
Electromagnetic scattering
Laboratories
Niobium compounds
Particle scattering
Prototypes
Storage rings
Superconducting coils
Titanium compounds
Undulators
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Summary:A planar superconducting undulator (SCU) with a period of 15 mm is under development at the Advanced Photon Source (APS). The intended users require a photon energy that can be tuned from 19 to 28 keV for inelastic X-ray scattering studies. The SCU design consists of two low-carbon-steel cores that are positioned above and below the beam chamber. There are 20 turns of NbTi/Cu superconducting (SC) wire within a coil cross section of 4.3 /spl times/ 4.0 (w /spl times/ h) mm/sup 2/. At a pole gap of 8 mm, the necessary average current density in the coil will be about 1 kA/mm/sup 2/ to achieve a peak field of 0.8 T on the beam axis. The design and fabrication progress of a 12-period prototype SCU are presented, and some challenging requirements are discussed.
ISBN:9780780377387
0780377389
ISSN:1063-3928
2152-9647
DOI:10.1109/PAC.2003.1289591