Title :
Chromatic correction in the SLC bunch length compressors
Author :
Adolphsen, C.E. ; Emma, P.J. ; Fieguth, T.H. ; Spence, W.L.
Author_Institution :
SLAC, Stanford, CA, USA
Abstract :
The SLC (SLAC Linear Collider) Ring-to-Linac (RTL) transport lines employ intense bending and strong transverse focusing to produce the momentum compaction needed for bunch length compression prior to S-band acceleration. In the presence of the large RF-induced energy spread needed for compression the consequent chromatic effects (i.e. the variation with energy of residual output dispersion and of the RTL transfer matrix) threaten to destroy the small emittances produced by the damping rings. The tuning methods that have been developed and used to implement the sextupole-based chromatic correction scheme are discussed.<>
Keywords :
beam handling equipment; beam handling techniques; electron accelerators; linear accelerators; RTL transfer matrix; S-band acceleration; SLAC Linear Collider; SLC bunch length compressors; bunch length compression; chromatic effects; damping rings; intense bending; momentum compaction; sextupole-based chromatic correction scheme; strong transverse focusing; transport lines; tuning methods; Acceleration; Compaction; Compressors; Damping; Dispersion; Lattices; Linear accelerators; Linear particle accelerator; Solids; Wire;
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.1991.164348
