Author: Chou, P.J.
Paper Title Page
MOPPC077 Simulation and Analysis of the Beam Signal in Taiwan Photon Source Booster 313
  • C.C. Chiang, H.-P. Chang, P.J. Chou
    NSRRC, Hsinchu, Taiwan
  • S.-Y. Lee
    IUCEEM, Bloomington, Indiana, USA
  The TPS (Taiwan Photon Source) booster is a combined function FODO lattice with six super-periods; the total circumference is 496.8 m. To prepare the analysis tools for beam commissioning, we simulate the TPS booster turn-by-turn BPM data with two programs, MAD-X PTC and Tracy-2.6, which are for both DC (constant beam energy) and AC (beam energy in regular ramping) modes. We analyze the simulation data with MIA (Model Independent Analysis) and ICA (Independent Component Analysis), in order to reconstruct beam parameters like beta function, phase advance, dispersion, etc. We include multipole errors, alignment errors, BPM noises or other noises in simulation, and try to design a good strategy for real data analysis.  
MOPPC078 Simulation Studies of Injection Scheme in TPS Storage Ring 316
  • Y.C. Lee, H.-P. Chang, P.J. Chou
    NSRRC, Hsinchu, Taiwan
  Funding: NSRRC, Hsinchu, Taiwan.
The baseline lattice of TPS storage ring was finalized in October 2009. Later upon users’ request, we plan to implement the double mini-βy lattice in three 12-m straight sections of TPS storage ring. These locations were chosen to maintain the symmetry of the storage ring lattice. Particle tracking for the first few turns were used to check the injection scheme of storage ring, including errors introduced in manufacturing and installation process. Results of simulation studies will be presented.
TUPPP025 Resurrection of RESOLVE at NSRRC Prepared for the First Turn Beam Steering of the TPS Commissioning 1665
  • H.-P. Chang, H.H. Chen, P.C. Chiu, P.J. Chou, K.T. Hsu, S.J. Huang, Y.-C. Liu, F.H. Tseng
    NSRRC, Hsinchu, Taiwan
  MATLAB based high level application software prepared for the 3GeV Taiwan Photon Source has been built and tested on the 1.5GeV Taiwan Light Source continuously. The RESOLVE program is surveyed and resurrected at NSRRC to support and help the first turn beam steering in the coming commissioning of the TPS accelerator complex. Due to the RESOLVE’s history, it contributed a lot in the past commissioning of SLC at SLAC National Accelerator Laboratory, we believe it may give help although most of the first turn beam steering of current light source machines may pass smoothly with well machine construction. In order to make the revised RESOLVE working, not only the compiling problem but also some memory bugs have been fixed, the updated RESOLVE now can be run on PC/Linux and Mac/OSX computer systems. We are trying to apply and test it on the TLS SR with the turn-by-turn digital BPM system. Some exercises of the error finding in beam steering of the off-axis injection beam are performed for presentation.