Emittance Correction in the 2006 ILC Bunch Compressor

Tenenbaum, P.

Stanford Linear Accelerator Center

关键词: Linear Colliders;    Quadrupoles Accelerators,Accphy;    43 Particle Accelerators;    Beam Bunching;    Beam Monitors;   

DOI  :  10.2172/900604
RP-ID  :  SLAC-TN-07-004
RP-ID  :  AC02-76SF00515
RP-ID  :  900604

美国|英语

来源: UNT Digital Library

【 摘 要 】

A recent study [1] has indicated substantial potential emittance growth in the ILC bunch compressor due to quad misalignments, BPM misalignments, and pitches in the RF cavities. Table 1 summarizes several results from [1]. In this simulation, quad misalignments and cavity pitches are Gaussian distributed and are considered with respect to the nominal survey line; BPM misalignments are also Gaussian-distributed but are considered with respect to the quadrupole axis. It is assumed that the BPM offsets with respect to the quads are found in a previous quad-shunting BBA step which is not simulated. In this study we seek to repeat the studies documented above, and additionally to perform a study in which additional dispersion bumps are used to further reduce the projected emittance.