Author: Du, Y.-C.
Paper Title Page
WEPWA021 X-ray Spectra Reconstruction with HOPG Crystal on TTX 2174
 
  • Z. Zhang, Y.-C. Du, J.F. Hua, W.-H. Huang, C.-X. Tang, D. Wang, L.X. Yan
    TUB, Beijing, People's Republic of China
 
  Thom­son Scat­ter­ing sources, as the new gen­er­a­tion of bright X-ray sources, have great ap­pli­ca­tion po­ten­tial in many re­spects. Tra­di­tional spec­tra mea­sure­ment meth­ods, ap­plied to mea­sured the spec­tra of Thom­son Scat­ter­ing source, are trou­ble­some as the X-ray beam is too in­tense to cause pile up prob­lems. In this ar­ti­cle, we use the HOPG crys­tal to re­con­struct the X-ray spec­tra of Ts­inghua Thom­son X-ray source (TTX) through Braggs law. This method can get rea­son­able re­sults with sin­gle or sev­eral shots, with high en­ergy res­o­lu­tion. We also com­pare the ex­per­i­ment re­sults of this method with the re­con­structed spec­tra by an­a­lyz­ing the at­ten­u­a­tion data of the X-ray beam in sil­i­con , and these two re­sults agree well with each other.  
 
THPWA018 High Power Test of a C-band 6 MeV Standing-wave Linear Accelerator 3666
 
  • J.H. Shao, H.B. Chen, Y.-C. Du, Q.X. Jin, J. Shi, H. Zha
    TUB, Beijing, People's Republic of China
 
  A C-band 6MeV stand­ing-wave bi-pe­ri­odic on-axis cou­pled lin­ear ac­cel­er­a­tor has been de­vel­oped at the ac­cel­er­a­tor lab­o­ra­tory of Ts­inghua Uni­ver­sity [1,2]. In the re­cent high power RF test, the cap­ture ratio, the en­ergy spec­trum, the spot size and the dose rate of this ac­cel­er­a­tor have been mea­sured. With a 2.07-MW input power, the peak cur­rent is 130mA and the out­put spot root-mean-square di­am­e­ter is about 0.8mm. The out­put ki­netic en­ergy is 6.0MeV with a spec­trum FWHM of 7.5%. In this paper, the setup and de­tailed re­sults of the high power RF test are pre­sented.