Author: Li, C.
Paper Title Page
WEPWA023 Design of 14 MeV LINAC for THz Source Based FEL 2181
  • Y.J. Pei, G. Feng, Y. Hong, G. Huang, D. Jia, K. Jin, C. Li, J. Li, S. Lu, L. Shang
    USTC/NSRL, Hefei, Anhui, People's Republic of China
  • Q.S. Chen, M. Fan, T. Hu, Y.Q. Xiong, H. Zeng
    HUST, Wuhan, People's Republic of China
  • B. Qing, Z.X. Tang, X.L. Wei
    USTC, Hefei, Anhui, People's Republic of China
  • L.G. Shen, F. Zhang
    USTC/PMPI, Hefei, Anhui, People's Republic of China
  Abstract THz wave have many special performances, such as it can penetrate deep into many organic materials without the damage associated with ionizing radiation such as X-ray, it can be used to distinguish between materials with varying water content, because THz radiation is absorbed by water. In part researchers lacked reliable sources of THz, so develop new THz sources is important now. So far there were many kind of THz Source, one of them is THz source based a FEL that can produce high power (~kW). This paper will describe the design of a LINAC of 14MeV which is used for FEL to produce THz radiation. The LINAC is mainly composed of a novel EC-ITC RF gun, compensation coil, constant gradient accelerating structure, beam diagnostic system and so on. Main design parameters are as following: Energy 7~15MeV Beam current (macro pulse) 571mA (micro pulse) 30~40° Bunch length 5~7ps Charge per bunch 200~300pC Normalized emittance ≤10mm.mrad Energy spread(rms) ≤0.5%  
THPEA016 EPICS Driver for Phoenix Contact Redundant PLC 3176
  • G. Liu, C. Li, J.Y. Li, J.G. Wang, W. Xu, K. Xuan
    USTC/NSRL, Hefei, Anhui, People's Republic of China
  The RFC 460R PLC from Phoenix Contact is a high-performance controller that has been extended to offer redundancy functionality. This redundancy functionality is vital for uninterrupted processes in complex systems and large plants. In order to integrate this product into EPICS environment, an EPICS Driver is developed. This driver is intended to connect a pair of RFC 460R redundant PLCs via TCP/IP to an EPICS IOC. In this paper, the communication mechanism, software implementation and the test results of a prototype system will be described.