Emittance Correction in the 2006 ILC Bunch Compressor

Tenenbaum, P. ; /SLAC

关键词: BEAM EMITTANCE;    CORRECTIONS;    BEAM BUNCHING;    LINEAR COLLIDERS;    BEAM MONITORS;    BEAM POSITION;    ALIGNMENT;    QUADRUPOLES Accelerators;    ACCPHY;   

DOI  :  10.2172/900604
RP-ID  :  SLAC-TN-07-004
PID  :  OSTI ID: 900604
Others  :  TRN: US0702505

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 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.