Author: Tseng, F.H.
Paper Title Page
WE4P18 Preliminary Design of Higher-order Achromat Lattice for the Upgrade of the Taiwan Photon Source 184
 
  • N.Y. Huang, M.-S. Chiu, P.J. Chou, G.-H. Luo, H.W. Luo, H.-J. Tsai, F.H. Tseng
    NSRRC, Hsinchu, Taiwan
 
  We study the upgrade of Taiwan Photon Source (TPS) with energy saving as the prime objective. The upgrade design is dubbed TPS-II. To accommodate the constraints imposed by the existing TPS tunnel, we choose the higher-order achromat (HOA) lattice configuration which is composed of the 5BA and 4BA cells. This HOA lattice produces a natural beam emittance about 131 pm-rad for a 3 GeV, 518.4 m storage ring. The on-momentum dynamic aperture is about 8 mm and the estimated Touschek life time reaches around 5.7 hours at total beam current of 500 mA. As a result of the ultralow beam emittance, the brightness and coherence fraction (CF) of the photon beam are improved with a factor of several tens especially in the photon wavelength around 0.1 nm. The challenges and preliminary results of this HOA lattice design will be presented.  
poster icon Poster WE4P18 [5.398 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P18  
About • Received ※ 21 August 2023 — Revised ※ 28 August 2023 — Accepted ※ 30 August 2023 — Issued ※ 02 December 2023
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WE4P19 Simulation Study of Orbit Correction by Neural Network in Taiwan Photon Source 188
 
  • M.-S. Chiu, Y.-S. Cheng, G.-H. Luo, H.-J. Tsai, F.H. Tseng
    NSRRC, Hsinchu, Taiwan
  • C.P. Felix
    MCL/ITRI, Hsinchu, Taiwan
 
  Machine learning has been applied in many fields in re-cent decades. Many research articles also presented re-markable achievements in either operation or designing of the particle accelerator. This paper focuses on the simulated orbit correction by neural networks, a subset of machine learning, in Taiwan Photon Source. The training data for the neural network is generated by accelerator toolbox (AT).  
poster icon Poster WE4P19 [0.843 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P19  
About • Received ※ 23 August 2023 — Revised ※ 29 August 2023 — Accepted ※ 30 August 2023 — Issued ※ 02 December 2023
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WE4P20 Alignment Results of Tandem EPUs at the Taiwan Photon Source 192
 
  • Y.-C. Liu, C.M. Cheng, T.Y. Chung, Y.M. Hsiao, F.H. Tseng
    NSRRC, Hsinchu, Taiwan
 
  Taiwan Photon Source (TPS) has been open to user operation since 2016. We report the alignment results of tandem EPUs in one double mini-beta y long straight section. The goal is to increase the brilliance of the synchrotron lights produced by the tandem EPUs through well-alignment and using a phase shifter to achieve both spatial and temporal coherence. The calculated brilliance gain of the tandem EPUs is compared, and the difference between the measured and numerical results is analyzed.  
poster icon Poster WE4P20 [4.435 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P20  
About • Received ※ 16 August 2023 — Revised ※ 30 August 2023 — Accepted ※ 31 August 2023 — Issued ※ 02 December 2023
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