Title :
Transverse wake field characteristics of the KEK positron generator linac
Author :
Ogawa, Yujiro ; Shidara, Tetsuo ; Takao, Masaru ; Asami, Akira
Author_Institution :
KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
A multibunch transverse instability due to a wake field was investigated in detail by using a high-intensity, multibunched beam at the primary electron section of the KEK (Japan National Laboratory for High Energy Physics) positron generator linac. The transverse motion of each bunch showed a peculiar behavior when a transverse instability occurred. The experimental results were compared with a numerical calculation based on a multibunch version of P.B. Wilson´s (1989) two-particle model. The transverse wake field for the cavity was estimated using TBCI-code. The calculation explains the observed behavior of each bunch.<>
Keywords :
electron accelerators; linear accelerators; particle beam diagnostics; KEK; TBCI-code; multibunch transverse instability; multibunched beam; positron generator linac; primary electron section; transverse instability; wake field; Acceleration; Character generation; Colliding beam devices; Electron beams; Frequency; Linear particle accelerator; Positrons; Pulse compression methods; Pulse width modulation; Space vector pulse width modulation;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164345
