Title :
Analysis of resonant longitudinal instability in a heavy ion induction linac
Author :
Lee, Edward P. ; Smith, L.
Author_Institution :
Lawrence Berkeley Lab., California Univ., CA, USA
Abstract :
A high current beam of subrelativistic ions accelerated in an induction linac is predicted (in some circumstances) to exhibit unstable growth of current fluctuations at high frequencies ( nu approximately 100 MHz). The instability is driven by the interaction between the beam and accelerator modules at frequencies close to a cavity resonance. The extent of unstable growth depends on features of the coupling impedance, beam parameters, and total pulse and accelerator lengths. Transient and asymptotic analyses are presented.<>
Keywords :
collective accelerators; ion accelerators; particle beam diagnostics; 100 MHz; accelerator lengths; asymptotic analyses; beam parameters; coupling impedance; current fluctuations; heavy ion induction linac; high current beam; resonant longitudinal instability; subrelativistic ions; total pulse length; transient analysis; Acceleration; Fluctuations; Frequency; Ion accelerators; Ion beams; Linear particle accelerator; Optical coupling; Particle beams; Resonance; Transient analysis;
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.1991.164762
