Author: Yang, J.
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THPIK059 Experimental Study on PM-AM Method in Pulse Compression System 4230
 
  • P. Wang, H.B. Chen, C. Cheng, M.M. Peng, J. Shi, X.W. Wu, J. Yang, H. Zha
    TUB, Beijing, People's Republic of China
 
  We experimentally demonstrate the PM-AM method (Phase Modulation to Amplitude Modulation) at the S-band high power test stand, which consists of two S-band klystrons, a SLED type pulse compressor and two high power stainless steel RF loads, in Tsinghua University. A LLRF (low level RF) system has been developed to modulate the phases of the two klystrons in real time such that pulse compressor could generate a flat output pulse. Experimental results presents that the efficiency of the pulse compression system is 45% and the power gain is 2.9.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK059  
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THPVA055 The Preliminary Performance of the Timing and Synchronization System at Tsinghua University 4565
SUSPSIK113   use link to see paper's listing under its alternate paper code  
 
  • Z.Y. Lin, Y.-C. Du, W.-H. Huang, W.-H. Huang, C.-X. Tang, C.-X. Tang, J. Yang
    TUB, Beijing, People's Republic of China
  • J.M. Byrd, L.R. Doolittle, G. Huang, Q. Qiang, R.B. Wilcox, Y.L. Xu
    LBNL, Berkeley, California, USA
 
  A precise timing and synchronization system is developed in Tsinghua University(THU). The whole system scheme includes fiber-based CW carrier phase reference distribution system (PRDS) for delivering stabilized RF phase reference to multiple receiver clients, Low Level RF (LLRF) control system to stabilized the accelerating mi-crowave field and laser-RF synchronization system for high precise synchronization of optical and RF signals. The system test and the demonstration experiment of each subsystem are carried on to evaluate the system and the phase error jitter resources are analysed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA055  
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