Effect of betatron motion on the septum flux in superslow extraction at the SSC

Autor:	J.A. Ellison, B.S. Newberger, H.-J. Shih
Rok vydání:	2002
Předmět:	Physics Monte Carlo method Flux Particle accelerator Tracking (particle physics) Betatron law.invention Computational physics Nuclear physics Amplitude law Physics::Accelerator Physics Diffusion (business) Noise (radio)
Zdroj:	Proceedings of International Conference on Particle Accelerators.
DOI:	10.1109/pac.1993.308905
Popis:	A scheme for the superslow extraction of protons from the SSC rings for high energy test beam or precision fixed-target B physics is currently being investigated. The flux onto the extraction septum (a curved Si crystal) is to be generated by diffusion produced by noise injected into the RF system. The extraction rate depends on both the diffusion of the closed orbit (due to dispersion at the crystal) and the horizontal betatron amplitude of the diffusing protons. The diffusion of the closed orbit has previously been described by the one-dimension longitudinal diffusion theory of Dome (1984) and Krinsky and Wang (1982). In this paper, we extend this theory to include the effect of the betatron motion. Comparisons with Monte Carlo tracking simulations are made. >
Databáze:	OpenAIRE
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