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Tong, D.C.

Paper Title Page
MOPEA017 Developing of a C-Band 9 MeV / 6 MeV SW Electron Linear Accelerating Tube 100
 
  • Q.X. Jin, H. Chen, D.C. Tong
    TUB, Beijing
  
 

In this paper, the design of a C-band SW accelerating tube is presented and its high power test set is shown. The tube can accelerate electrons to 9 MeV or 6 MeV. Its length is about 620mm, and a Pierce electron gun is used. A 2.5MW pulsed magnetron at 5712 MHz is served as the tube's RF power source. Two energy modes are performed by changing the input RF power and the injecting voltage of electron gun.

  
THPEA026 Investigation of the Genetic Algorithm in the Diagnosis of the Coupled Cavity Chain 3735
 
  • Q.Z. Xing, T.T. Liang, J. Lv, D.C. Tong
    TUB, Beijing
  
 

The application of the genetic algorithm in the diagnosis of the coupled cavity chain is investigated in this paper. One program named GANL2 has already been developed based on the genetic algorithm at Tsinghua University. The cell frequencies, quality factors, and coupling between the cells can be estimated by GANL2 if the pass-band reflection curve is known. This method has been applied in the diagnosis of the S-band and X-band standing-wave linac cavities. In this paper we present the preliminary investigation of the genetic algorithm in the diagnosis of the L-band 9-cell superconducting copper cavity model. The result of the calculation and measurement are compared. Not all the cells are diagnosed well. More precise measurement is needed for further study.