1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Nb3Sn superconducting multipole wiggler as a vertically polarized hard X-ray source

TUPM065
3 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC2.T15 Undulators and Wigglers Tuesday Poster Session

Speaker

Hirotoshi Saito (High Energy Accelerator Research Organization)

Description

Vertically polarized superconducting wigglers enable unique hard X-ray experiments based on horizontal optical setups. However, their implementation in modern low-emittance storage rings has been limited due to significant emittance growth. We present a vertically polarized superconducting multipole wiggler designed to reduce the impact on beam emittance. By limiting the magnetic field to 2-3 T and shortening the period length using Nb3Sn wires with higher critical current density compared to conventional NbTi, the beam orbit amplitude and the resultant emittance growth are reduced. As a case study for the future light source project at KEK, PF-HLS (Photon Factory Hybrid Light Source), we discuss a design based on vertical circular winding coils with a sub-100 millimeter period length and a sub-100 micrometer orbit amplitude, as well as its influence on beam emittance.

Region represented Asia

Author

Hirotoshi Saito (High Energy Accelerator Research Organization)

Co-authors

Kimichika Tsuchiya (High Energy Accelerator Research Organization) Chikaori Mitsuda (High Energy Accelerator Research Organization) Kentaro Harada (High Energy Accelerator Research Organization) Yoshito Shimosaki (High Energy Accelerator Research Organization) Takashi Obina (High Energy Accelerator Research Organization)

Presentation materials

There are no materials yet.