17–22 May 2026
C.I.D
Europe/Zurich timezone

Mechanical design and structural analysis of septum magnet for Thailand new synchrotron light source

TUP7715
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC7.T16: Pulsed Technology (magnet and power supplies) Poster session

Speakers

Kantanat Phochanasombut (Chulalongkorn University) Nattakit Chaijaroenmaitree (Chulalongkorn University)

Description

The Synchrotron Light Research Institute of Thailand is developing a new eddy-current septum magnet as part of the pulsed magnet systems for its next-generation synchrotron light source, the Siam Photon Source II (SPS-II). This work focuses on mechanical design and structural analysis of the septum magnet to improve the prediction of anomalies and potential failures over the machine's operational lifetime. Finite element method is used to evaluate both static deformation of the in-air magnet yoke and transient vibration response of the septum blade under pulsed magnetic force, which can induce fatigue damage through cumulative stress cycles. Static analysis indicates that the proposed design satisfies structural integrity and magnetic field uniformity requirements. The impulse vibration fatigue assessment of the septum blade falls within the ultra-high-cycle fatigue (UHCF) regime, with stablished S-N data for copper alloys providing design guidance for extending the magnet's operational life.

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Authors

Kantanat Phochanasombut (Chulalongkorn University) Nattakit Chaijaroenmaitree (Chulalongkorn University) Sarita Morakul (Chulalongkorn University)

Co-authors

Prapaiwan Sunwong (Synchrotron Light Research Institute) Taylor Yan (Synchrotron Light Research Institute) Thanapong Phimsen (Synchrotron Light Research Institute) Thongchai Leetha (Synchrotron Light Research Institute)

Presentation materials

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