Author: Shimogawa, T.
Paper Title Page
MOPPD052 Study of Electrostatic Septum by Low-Z Material for High Intensity Proton Beam 484
 
  • D. Horikawa
    Sokendai, Ibaraki, Japan
  • Y. Arakaki, K. Okamura, Y. Shirakabe, M. Tomizawa
    KEK, Ibaraki, Japan
  • I. Sakai
    University of Fukui, Faculty of Engineering, Fukui, Japan
  • T. Shimogawa
    Saga University, Faculty of Science and Engineering, Saga, Japan
 
  In a high-intensity proton accelerator, the beam loss at the time of late beam extraction causes radioactivation of apparatus. It takes out and is a problem serious to that of upper about beam power. Its attention was paid to electric septum (ESS) of the equipment used for beam extraction for problem solving. The septum section of ESS which beam hits directly is usually used for tungsten. Therefore, it is low atomic number material to the septum section. Development of the new model ESS using the textile material carbon fiber of a certain carbon (CF) was started. Is it a problem in CF at processability? Is it using for the septum section of ESS for a certain reason? Difficult it was. Therefore, it succeeded in obtaining required form and intensity by developing the twisting thread technology of CF. Moreover, the tension strength test of CFwire and the pyrogenicity test by electric current were done. Is it the tension intensity and heat durability which exceed the existing tungsten wire? It was confirmed. In addition to the ESS development technique using these new materials, and a result, a future measure is reported.