IPAC'25 - the 16th International Particle Accelerator Conference

Two in-vacuum undulators developed for the Sirius

TUPM072

3 Jun 2025, 16:00

2h

Exhibiton Hall A _Magpie (TWTC)

Poster Presentation MC2.T15 Undulators and Wigglers Tuesday Poster Session

Speakers

Cheng Yu (Shanghai Advanced Research Institute) Shudong Zhou (Shanghai Advanced Research Institute)

Description

The Shanghai Synchrotron Radiation Facility (SSRF) project team developed two in-vacuum undulators (IVUs) with a period length of 18.5 mm and a gap of 4 mm for the SIRIUS. This paper introduces the design and magnetic field measurements. The results indicate that with a gap range of 4-20 mm, the phase error is less than 3°, the quadrupole field is less than 37 Gs, the sextupole field is less than 83 Gs/cm, and the octupole field is less than 84 Gs/cm².