Development of short-period Nb{sub 3}Sn superconducting undulators for the APS.

Conference · Sun Jun 01 04:00:00 EDT 2008 · IEEE Trans. Appl. Supercond.

DOI:https://doi.org/10.1109/TASC.2008.920528· OSTI ID:974017

Kim, S H; Doose, C L; Kustom, R L; Moog, E R

Superconducting undulators (SCUs) with a period of 14.5 mm are under development for the Advanced Photon Source (APS) using Nb{sub 3}Sn superconductors. The initial goal is to install a SCU with a 19- to 29-keV tuning range for the first harmonic photon energy. The design of the SCU assembly includes the interface with the beam chamber as an integral part of the assembly. A four-period Nb{sub 3}Sn half SCU was fabricated and tested. After a number of quenches, the SCU was charged to an engineering current density of 1.92 kA/mm{sup 2} in the coil pack. This corresponds to a peak field of 1.08 T on the beam axis with a pole gap of 8.5 mm. The achieved current density was approximately 90% of the engineering critical current density for the design calculations. With an operating current density of 1.6 kA/mm{sup 2}, the SCU will operate at a peak field of 0.95 T with some degree of stability.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 974017
• Report Number(s): ANL/ASD/CP-117682
• Conference Information: Journal Name: IEEE Trans. Appl. Supercond. Journal Issue: 2 ; Jun. 2008 Journal Volume: 18
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
CRITICAL CURRENT
CURRENT DENSITY
DESIGN
HARMONICS
PHOTONS
STABILITY
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TUNING
WIGGLER MAGNETS