Investigation into electron cloud effects in the International Linear Collider positron damping ring

Abstract

We report modeling results for electron cloud buildup and instability in the International Linear Collider positron damping ring. Updated optics, wiggler magnets, and vacuum chamber designs have recently been developed for the 5 GeV, 3.2-km racetrack layout. An analysis of the synchrotron radiation profile around the ring has been performed, including the effects of diffuse and specular photon scattering on the interior surfaces of the vacuum chamber. The results provide input to the cloud buildup simulations for the various magnetic field regions of the ring. The modeled cloud densities thus obtained are used in the instability threshold calculations. We conclude that the mitigation techniques employed in this model will suffice to allow operation of the damping ring at the design operational specifications.

Final version. 14 pages, 22 figures, 43 citations

References in corpus (2)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC

Cited by in corpus (4)

• Measurements of Electron Cloud Growth and Mitigation in Dipole, Quadrupole, and Wiggler Magnets
• Measurement of Electron Trapping in the CESR Storage Ring
• Beam Induced Electron Cloud Resonances in Dipole Magnetic Fields
• Simulation and Analysis of TE Wave Propagation as a Probe for Electron Clouds in Particle Accelerators