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Title: Emittance Correction in the 2006 ILC Bunch Compressor

Emittance Correction in the 2006 ILC Bunch Compressor 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.
Authors: ;
Publication Date:
OSTI Identifier:900604
Report Number(s):SLAC-TN-07-004
TRN: US0702505
DOE Contract Number:AC02-76SF00515
Resource Type:Technical Report
Data Type:
Research Org:Stanford Linear Accelerator Center (SLAC)
Sponsoring Org:USDOE
Country of Publication:United States
Language:English
Subject: 43 PARTICLE ACCELERATORS; BEAM EMITTANCE; CORRECTIONS; BEAM BUNCHING; LINEAR COLLIDERS; BEAM MONITORS; BEAM POSITION; ALIGNMENT; QUADRUPOLES Accelerators,ACCPHY