Results from beam diffusion and collimation measurements in preparation for Fermilab Tevatron crystal extraction

摘要

In order to extract stored beam from the Tevatron Collider in a controlled and transparent manner, protons must be diffused from the core of the beam into the lattice of the bent crystal without inducing higher background rates in the high energy physics detectors CDF and D0. The experimental study of diffusion, collimation, and detector backgrounds are part of the larger effort of the Fermilab experiment E853. Reported in this paper are results showing the effect of RF noise on beam size evolution, proton diffusion from the beam core, and detector backgrounds.