Experimental Studies of Compensation of Beam-Beam Effects with Tevatron Electron Lenses

Abstract

Applying the space-charge forces of a low-energy electron beam can lead to a significant improvement of the beam-particle lifetime limit arising from the beam-beam interaction in a high-energy collider [1]. In this article we present the results of various beam experiments with electron lenses, novel instruments developed for the beam-beam compensation at the Tevatron, which collides 980-GeV proton and antiproton beams. We study the dependencies of the particle betatron tunes on the electron beam current, energy and position; we explore the effects of electron-beam imperfections and noises; and we quantify the improvements of the high-energy beam intensity and the collider luminosity lifetime obtained by the action of the Tevatron Electron Lenses.

submitted for publication in New Journal of Physics

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• Tevatron Electron Lenses: Design and Operation
• Landau Damping of Beam Instabilities by Electron Lenses
• The Legacy of the Tevatron in the Area of Accelerator Science
• A 6kV Arbitrary Waveform Generator for the Tevatron Lens
• Beam-beam simulation code BBSIM for particle accelerators
• Bunch-by-bunch measurement of transverse coherent beam-beam modes in the Fermilab Tevatron collider