Paper |
Title |
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WEPAB085 |
Siam Photon Source: Present Machine Status and Future Upgrades |
2770 |
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- P. Klysubun, S. Boonsuya, N. Juntong, K. Kittimanapun, S. Kongtawong, S. Krainara, A. Kwankasem, T. Pulampong, P. Sudmuang, N. Suradet
SLRI, Nakhon Ratchasima, Thailand
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Siam Photon Source, the Thailand synchrotron light source, has received several upgrades in recent years. Most important of which are the improvement of the positional stability of the stored electron beam, and the installation of 2 IDs, i.e. a 2.2 T hybrid multipole wiggler and a 6.5 T superconducting wavelength shifter, to extend the available SR spectrum into hard x-ray region. The beam stability improvement was achieved through several activities, including improving the BPM system, upgrading the existing corrector power supplies, and implementing global orbit feedback. The two new IDs provide higher-intensity and higher-energy (up to 25 keV) synchrotron light, which will be utilized for MX, high-energy SAXS, WAXS, XAS, and microtomography. Ongoing machine upgrades include increasing the energy of the booster and transport line to 1.2 GeV for full-energy injection and eventual top-up operation. Utilization of the electron beam is also being explored. A beam test facility, which extracts electron beam in the booster for characterizing high-energy particle sensors, as well as calibrating other beam diagnostic instruments, has been constructed and is now in operation.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-WEPAB085
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WEPIK099 |
Beam Lifetime Studies for SPS Storage Ring |
3178 |
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- P. Sudmuang, N. Juntong, P. Klysubun, T. Pulampong, N. Suradet
SLRI, Nakhon Ratchasima, Thailand
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Limitation of beam lifetime was systematically investigated and studied for Siam Photon Source (SPS) storage ring. The objective was to identify the main cause of the observed reduction of beam lifetime. The simulations of momentum acceptance and Touschek lifetime were performed, incorporating non-linear effects generated by the installed high-field insertion devices. The Touschek lifetime was measured as a function of RF voltage and compared with the values obtained from simulation. The measurements were performed for a variety of different operation conditions of the insertion devices and different chromaticities.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-WEPIK099
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THPIK102 |
Commissioning of the SLRI Storage Ring Second RF System |
4328 |
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- N. Juntong, S. Boonsuya, S. Cheedket, Ch. Dhammatong, S. Krainara, W. Phacheerak, R.R. Rujanakraikarn, N. Suradet
SLRI, Nakhon Ratchasima, Thailand
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The old RF cavity in the storage ring of SIAM Photon Source (SPS), the 1.2 GeV second generation synchrotron light source in Thailand, has been pushed to its maximum capability to compensate electron energy lost in the storage ring. This energy lost is the effect from two additional insertion devices, which have been installed in SPS storage ring during June to August 2013. The new RF system has been planned since 2012, but with some technical and procurement difficulty the new system was successfully commissioning and running in August 2016. The installation, acceptance testing, conditioning and commissioning results of the new RF cavity, RF high power transmitter, and the low level RF system will be presented
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK102
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THPIK103 |
Six Months of Operation of the New RF Cavity System of SLRI |
4331 |
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- N. Juntong, Ch. Dhammatong, P. Sudmuang, N. Suradet
SLRI, Nakhon Ratchasima, Thailand
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The new RF cavity system has been installed in the storage ring of SIAM Photon Source (SPS) since August 2016. The RF cavity was designed base on the MAX-IV laboratory capacitive loaded type cavity. The solid-state technology was implemented in the RF high power transmitter. The low-level RF system utilized the digital technology. The system has been successfully commissioned and run with a capability to compensate an energy lost from a full capacity run of insertion devices since August 2016. This paper summarizes the problems and actions of the new RF system and presents an overview of six months of operation of the new RF system in the storage ring of SPS.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK103
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