Fast Ion Instability Simulations for CesrTA
نویسنده
چکیده
In 2008, it has been proposed to convert the Cornell Electron Storage Ring (CESR) into a test accelerator, called CesrTA, for the proposed International Linear Collider (ILC) damping rings. One of the effects to be studied in CesrTA is fast ion instability. An electron beam ionizes residual gas in the vacuum chamber, resulting in positive ions being trapped in the beam’s potential. Fast ion instability is caused by electronion Coulomb interactions in an electron bunch train when transverse deviations at the head of the train disturb the tail. This is expected to be an issue for the ILC electron damping ring. The purpose of this project is to develop simulations of fast ion instability, which, in combination with CesrTA experiments, will determine how severely fast ions will affect the ILC.
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