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Jia, Q.K.

Paper Title Page
MO6RFP101 Development of High Brightness Injector at NSRL 605
 
  • S.C. Zhang, D.H. He, Q.K. Jia, Z. Jin, W. Li, S. Lu, L. Shang, B. Sun, Y. Wang, C. Yao, R. Zhuo
    USTC/NSRL, Hefei, Anhui
  
 

A photocathode injector system is developing at NSRL. A BNL type S-band photocathode RF gun has been built. The emittance will be compensated by a Solenoid. The driving laser is a high-Q product. It will be reformed into uniform distribution in the transverse distribution, but will not in the longitudinal direction. The whole system will be tested soon.

  
WE5RFP088 Harmonic Motion of Electron Trajectory in Planar Undulator 2477
 
  • Q.K. Jia
    USTC/NSRL, Hefei, Anhui
  
 

For planar undulator, the expression of electron trajectory including harmonic motion has been deduced. It were shown that the electrons oscillate at odd harmonics in the transverse direction, and at even harmonics in the axial direction; the amplitude of nth harmonic oscillation is proportional to the nth power of ratio of undulator deflection parameter to the electron energy.