Operation and improvement of the Siam Photon Source

Klysubun, Prapong; Rugmai, Supagorn; Rujirawat, Saroj; Cheedket, Sampart; Kwankasem, C.; Hoyes, G.; Oyamada, M.

doi:10.1016/j.nima.2007.08.052

Cited by 1 publication

(1 citation statement)

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“…The SPS-II storage ring consists of 14 Double Triple Bend Achromat (DTBA) cells with a total ring circumference of 327.5 m. Following the successful fourth generation synchrotron light sources that adopted a Multi-Bend Achromat (MBA) lattice [1][2][3], the DTBA lattice allows an ultralow emittance. The beam emittance of the SPS-II storage ring is below 1 nm-rad, more than 40 times lower than the existing Siam Photon Source storage ring [4]. This will provide better photon beam characteristics and enable various experimental techniques and applications [5].…”

Section: Introductionmentioning

confidence: 99%

Development of Type A Quadrupole Magnet for Siam Photon Source II

Prawanta,

Leetha,

Singthong

et al. 2023

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A prototype of a type A quadrupole magnet has been designed and manufactured for the 3 GeV storage ring of Siam Photon Source II, the second synchrotron light source in Thailand. The required quadrupole gradient is 51 T/m with the magnet effective length being 162 mm. Magnet modeling and magnetic field calculation were performed using Radia and Opera-3D. The bore radius of the magnet is 16 mm. The magnet will be operated at the excitation of 5544 A-turns. A mechanical analysis of the magnet structure was performed in SOLIDWORKS and ANSYS, where the maximum deformation of 0.003 mm was found at the magnet poles, and the first-mode natural frequency was higher than 100 Hz. The magnet yoke is made of AISI 1006 low-carbon steel with a fabrication tolerance of ±0.020 mm. Magnet coils are water-cooled and made of high-purity copper. The temperature rise of the coils was below 3.0 °C at the maximum excitation of 6664 A-turns, which is 20% above the operating point. Magnetic field measurement was carried out using the Hall probe technique. The measured magnetic field and coil temperature of the prototype show good agreement with the calculations.

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