A short-period high-field Nb[subscript 3]Sn undulator study

Conference · Fri May 25 04:00:00 EDT 2007

DOI:https://doi.org/10.1109/TASC.2006.870783· OSTI ID:1008988

Weijers, H W; Cantrell, K R; Gavrilin, A V; Miller, J R ^[1]

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1. NHMF-Lab

With the intention to develop a technology suitable for a 2.4 m magnetic length, superconducting undulator with 0.8 T on the beam and a 15 mm period for the IXS beam line at the Advanced Photon Source at the Argonne National Lab, USA, a 0.6-m Nb{sub 3}Sn undulator demonstration magnet is under development at the NHMFL. The intent is to investigate the applicability of Nb{sub 3}Sn superconductor, in combination with soft magnetic materials, for a 15 mm period planar superconducting undulator. The demonstration requirements include a peak undulator magnetic field of at least 0.8 T and a vertical stay-clear aperture for the beam of at least 7 mm. In concept, the beam tube will be thermally isolated from the windings and operated at LN{sub 2} temperature to promote system reliability. Liquid helium and nitrogen reservoirs provide conduction cooling and the former also acts as a basic structural element. A brief description of a design is presented. A comparative study of fully and partly iron yokes and their effect on the required current density is performed. The results have implications for the yoke assembly procedure. Finally, a new yoke-winding geometry is presented.

• Research Organization: Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
• Sponsoring Organization: USDOE
• OSTI ID: 1008988
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
APERTURES
CURRENT DENSITY
DESIGN
GEOMETRY
HELIUM
IRON
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETS
NITROGEN
RELIABILITY
USA
WIGGLER MAGNETS