Title :
Control of energy sweep and transverse beam motion in induction linacs
Author :
Turner, William C.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
Recent data and the advances that have made improved beam quality possible are discussed. The most important advances are: understanding of focusing magnetic field errors and improvements in alignment of the magnetic axis, a redesign of the high-voltage pulse distribution system between the magnetic compression modulators and the accelerator cells, and exploitation of a beam tuning algorithm for minimizing transverse beam motion. A brief description is also given of the prospects for increasing the pulse repetition frequency to the range of 5 kHz and a delayed feedback method of regulating beam energy over very long pulse bursts, thus making average power megawatt-level microwave sources at 140 GHz and above a possibility.<>
Keywords :
beam handling techniques; collective accelerators; power supplies to apparatus; 140 GHz; 5 kHz; accelerator cells; beam quality; beam tuning algorithm; delayed feedback method; energy sweep; focusing magnetic field errors; high-voltage pulse distribution system; induction linacs; magnetic axis; magnetic compression modulators; megawatt-level microwave sources; pulse repetition frequency; transverse beam motion; Accelerator magnets; Frequency; Magnetic fields; Magnetic modulators; Motion control; Optical modulation; Particle beams; Pulse compression methods; Pulse modulation; Tuning;
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.1991.164371
