Development of a short-period superconducting undulator at APS

Author

Kim, S.H. ; Dejus, R.J. ; Doose, C. ; Kustom, R.L. ; Moog, E.R. ; Petra, M. ; Thompson, K.M.

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., IL, USA

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

1020

Abstract

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 × 4.0 (w × h) mm². At a pole gap of 8 mm, the necessary average current density in the coil will be about 1 kA/mm² 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.

Keywords

current density; electron accelerators; superconducting magnets; wigglers; 0.8 T; 15 mm; 19 to 28 keV; 8 mm; APS; Advanced Photon Source; NbTi/Cu superconducting wire; beam chamber; coil cross section; current density; inelastic X-ray scattering; low-carbon-steel cores; photon energy; planar superconducting undulator; short-period superconducting undulator; Current density; Electromagnetic scattering; Laboratories; Niobium compounds; Particle scattering; Prototypes; Storage rings; Superconducting coils; Titanium compounds; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289591

Filename

1289591