Study of field ionization in the charge exchange injection for the IPNS Upgrade

descriptionPublicationkeyboard_double_arrow_right Article 19 Nov 2002Publisher:IEEEJournal:Proceedings Particle Accelerator Conference, volume 5, pages 3,412-3,414

Authors: null Yong-Chul Chae; null Yanglai Cho;

doi: 10.1109/pac.1995.505899

Study of field ionization in the charge exchange injection for the IPNS Upgrade

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Abstract

The proposed 1-MW neutron spallation source is a rapid-cycling synchrotron (RCS) with a design intensity of 1.04/spl times/10/sup 14/ protons. A H/sup -/ beam from the linac is injected into the synchrotron via the charge exchange process. Due to the high intensity of the beam, the minimization of beam loss is one of the primary concerns. In this paper, we study a possible beam loss associated with field ionization, which includes estimates of the charge fraction and level distribution of the excited hydrogen atoms after stripping, and an estimate of lifetime of the excited hydrogen atoms in the transverse magnetic field.

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Argonne National Laboratory
United States

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