Start-to-end Beam Optics Development and Multi-particle Tracking for the ILC Positron Source

[摘要] Undulator-based positron source is adopted as the ILC baseline design. Complete optics to transport the positron beam having large angular divergence and large energy spread from an immersed thin Ti target to the entrance of the 5 GeV damping ring injection line is developed. Start-to-end multi-particle tracking through the beamline is performed including the optical matching device, capture system, transport system, superconducting booster linac, spin rotators, and energy compressor. It shows that 49.8% of the positrons from the target are captured within the damping ring 6-D acceptance--A{sub x} + A{sub y} {le} 0.09 m and {Delta}E x {Delta}z ({+-} 25 MeV) x ({+-} 3.46cm)--at the entrance of the damping ring injection line. The field and alignment errors and orbit correction are analyzed.

[发布日期] 2007-01-25

[学科分类] 物理（综合）

[关键词] ALIGNMENT;BEAM OPTICS;DAMPING;DESIGN;OPTICS;POSITRON BEAMS;POSITRON SOURCES;POSITRONS;SPIN;TARGETS;TRANSPORT Accelerators;ACCPHY