Title :
Beam breakup with longitudinal halo
Author :
Delayen, J.R. ; Bohn, C.L.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
An analytical model has been developed for cumulative beam breakup in linear accelerators that predicts the displacement of particles between bunches. Beam breakup is assumed to be caused by a periodic current consisting of an infinite bunch train. The particles in the halo do not contribute to the breakup but experience the deflecting fields and are displaced by them. Under certain circumstances, the displacement of particles in the halo can be considerably larger than that of the bunches. This may have important consequences for the design of high-current CW accelerators where even a small flux of particles striking components of the accelerator cannot be tolerated because of activation.<>
Keywords :
ion accelerators; linear accelerators; particle beam diagnostics; activation; cumulative beam breakup; linear accelerators; longitudinal halo; periodic current; Delay; Equations; Fourier transforms; Frequency; Laboratories; Linear particle accelerator; Optical coupling; Particle accelerators; Particle beams; Steady-state;
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.1991.164786
