Instability Thresholds And Generation of the Electron-Cloud in the GLC/NLC And Tesla Damping Rings | Zendy

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Instability Thresholds And Generation of the Electron-Cloud in the GLC/NLC And Tesla Damping Rings

Author(s) -

M. Pivi

Publication year - 2005

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/839846

Subject(s) - instability , physics , electron , ionization , beam (structure) , atomic physics , thermal emittance , cathode ray , coupling (piping) , collider , optics , nuclear physics , ion , materials science , mechanics , quantum mechanics , metallurgy

In the beam pipe of the Damping Ring (DR) of a linear collider, an electron cloud may be produced by ionization of residual gas or photoelectrons and develop by the sec- ondary emission process (1). Coupling between the elec- trons and the circulating beam can cause coupled-bunch in- stabilities, coherent single-bunch instabilities or incoherent tune spreads that may lead to increased emittance, beam blow-up and ultimately to beam losses. We present recent computer simulation results for the electron cloud instabil- ity thresholds in the GLC/NLC (X-Band) main DR and for the TESLA DR.

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