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Article
Title	Tevatron End-of-Run Beam Physics Experiments
Author(s)	Valishev, A (Fermilab) ; Gu, X (Brookhaven) ; Miyamoto, R (Brookhaven) ; White, S (Brookhaven) ; Schmidt, F (CERN) ; Qiang, J (LBNL, Berkeley)
Publication	2012
Number of pages	3
In:	Conf. Proc. C1205201 (2012) pp.WEOBA02
In:	3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.2128-2130
Subject category	Accelerators and Storage Rings
Abstract	Before the Tevatron Collider Run II ended in September of 2011, a number of specialized beam study periods were dedicated to the experiments on various accelerator physics concepts and effects during the last year of the machine operation. The study topics included collimation with bent crystals and hollow electron beams, diffusion measurements and various aspects of beambeam interactions. In this report we concentrate on the subject of beam-beam interactions, summarizing the results of beam experiments. The covered topics include offset collisions, coherent beam stability, effect of the bunch-length-to-beta-function ratio, and operation of AC dipole with colliding beams.