Author: Du, Y.-C.
Paper Title Page
WEPMH4
Recent Progress on High Quality Electron Beam Generation through Plasma Based Acceleration at Tsinghua University  
 
  • W. Lu, H.B. Chen, Y.-C. Du, J.F. Hua, W.-H. Huang, F. Li, C.H. Pai, J. Shi, C.-X. Tang, Y. Wan, Y.P. Wu, X.L. Xu, L.X. Yan, C.J. Zhang
    TUB, Beijing, People's Republic of China
 
  Recent progress on plasma based acceleration at Tsinghua University will be presented. On the theory and simulation part, several ideas on how to obtain high quality electron beams with extremely high brightness through wakefield acceleration will be discussed in details,including two recently published works based on ionization injection method(PRL 111,015003,2013; PRL 112,035003,2014); On the experiment part, our recent results of high quality 20-30MeV electron beams with very low energy spread, with minimal absolute energy spread of 0.18MeV RMS and relative energy spread 0.8% RMS, will be presented. The latest results on the generation of 300-430MeV high quality electron beams (2-5% energy spread) using a 50TW laser at NCU will also be discussed.  
 
WEPH07 Simulation Study of Dark Current in the Thomson Scattering X-Ray Source 38
 
  • L.M. Zheng, Y.-C. Du, C.-X. Tang
    TUB, Beijing, People's Republic of China
 
  This paper focuses on the study of beam dynamics of the dark current, including the dark current generation and transmission in the photocathode injector. For the longitudinal compression of the nominal beam in the Thomson scattering X-ray source, we add a velocity bunching cavity behind the RF gun. We analyse the influence of the bunching cavity on the transmission efficiency of the dark current. At last, some methods to reduce the dark current are discussed.  
 
THAMH1
Recently Progress of Tsinghua Thomson Scattering X-ray Source  
 
  • Y.-C. Du, H.B. Chen, J.F. Hua, W.-H. Huang, J. Shi, C.-X. Tang, L.X. Yan
    TUB, Beijing, People's Republic of China
 
  In the last three years, we have successfully generated high quality hard X-ray pulse at Tsinghua Thomson scattering X-ray source. The X-ray parameters, such as flux, beam profile, energy and spectrum, were measured successfully. One of the most interesting applications, x-ray phase contrast imaging, has also demonstrated on this facility. In this paper, we will show the recent progress of this facility in detail.