MT29 Abstracts and Technical Program

Session

Wed-Af-Or3 - Wiggler Magnets

2 Jul 2025, 16:30

Momentum EFG

Conveners

Wed-Af-Or3 - Wiggler Magnets

• Al Zeller (NHMFL/FSU)
• Thomas Nes (EPFL)

408. Wed-Af-Or3-01: Design and Preliminary Tests of a Short, High-Temperature Superconducting Wiggler for Synchrotron Light Source

Lorenzo Bortot (ESRF)

02/07/2025, 16:30

Contributed Oral

The European Synchrotron Radiation Facility (ESRF) is currently working on the development of a new synchrotron light source for its beamline BM18. The proposed source is a short wiggler composed by three pairs of magnetic poles, delivering a peak magnetic field of 1.58 tesla. A crucial requirement is the possibility of performing scans of the magnetic field intensity, while keeping the...

506. Wed-Af-Or3-02: Assembly and Test results of Cryogen-free Conduction Cooled Wavelength Shifter Magnet in Final Cryostat

Wonseok Jang (Seoul National University)

02/07/2025, 16:45

Contributed Oral

In 2022, a collaborative team led by Pohang Accelerator Laboratory, Seoul National University and Kangwon National University began the development of a 5 T metal-insulated high-temperature superconducting (HTS) wavelength shifter (WLS) magnet, aiming to enhance the brilliance of photons by 1,000 times at 100 keV in Pohang Light Source II. In 2023, we reported test results of the magnet in a...

863. Wed-Af-Or3-03: Horizontal winding method for undulator using high-temperature superconductor tapes

Ryota Kinjo (OIT)

02/07/2025, 17:00

Contributed Oral

To achieve a short-period, high-field undulator using HTS tape, we propose novel winding methods specifically designed for this purpose. Given the minimum bending radius constraint of HTS tape, conventional horizontal winding has been considered unsuitable for short-period undulators, leading to a primary focus on vertical winding. However, to overcome this limitation, we introduce an...

239. Wed-Af-Or3-04: Cryogenic Test and High-precision Temperature Regulation of a 50-period bulk HTS undulator

Ms Chan Liu (Zhangjiang Laboratory, Shanghai)

02/07/2025, 17:15

Contributed Oral

A 50-period bulk high-temperature superconducting (HTS) undulator, utilizing a staggered-array configuration of RE-Ba-Cu-O bulk superconductors and magnetized by a 7 T solenoid magnet, is currently under development at Zhangjiang Laboratory for Shanghai Soft X-ray Free Electron Laser (SXFEL) facility [1-2]. The device operates through multiple temperature control stages for the HTS insert,...

251. Wed-Af-Or3-05: Modeling and experiment result of double staggered-array helical undulator made of stacked RE-Ba-Cu-O tapes

Zhuangwei Chen (Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai)

02/07/2025, 17:30

Contributed Oral

High-temperature superconducting (HTS) materials have attracted significant interest for use in insertion devices due to their higher critical temperature, Tc and larger critical current density, Jc compared to low-temperature superconducting wires [1-3]. These properties enable the development of undulators with shorter period and larger on-axis magnetic field. Helical undulators, which...

389. Wed-Af-Or3-06: Characterization and Magnetic Field Optimization of an HTS Undulator Short Model Composed of RE-Ba-Cu-O Bulk Superconductors at 77 K

Dabin Wei (Shanghai Institute of Applied Physics, Chinese Academy of Sciences,)

02/07/2025, 17:45

Contributed Oral

A 12 mm-period, 0.6 m-long HTS undulator, employing staggered-array Gd-Ba-Cu-O (GdBCO) bulks and magnetized by a 7 T superconducting solenoid, is currently being fabricated at Zhangjiang Laboratory for deployment at the Shanghai Soft X-ray Free Electron Laser (SXFEL) facility [1-2]. Realizing an undulator field with an RMS phase error of only a few degrees requires approximately 100...