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Published Articles
Title	Mitigation of space charge effects using electron column at IOTA ring
Author(s)	Park, C S (Korea U.) ; Freemire, B (Euclid TechLabs, Rockville) ; Stern, E (Fermilab) ; Mitchell, C E (LBNL, Berkeley)
Publication	2020
Number of pages	3
In:	ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators (MCBI 2019), Zermatt, Switzerland, 23 - 27 Sep 2019, pp.112 (CERN-2020-009)
DOI	10.23732/CYRCP-2020-009.112
Subject category	Accelerators and Storage Rings
Abstract	We investigate a novel method to mitigate space charge effects of high intensity proton beams propagating in circular accelerators by means of trapping and controlling electrons generated from beam-induced residual gas ionization. This compensation method uses Coulomb repulsion force between a proton beam and electrons to mitigate self-space charge effects of the beam if it passes through a plasma column. The transverse electron-proton (e-p) instability in the plasma column is well controlled by the longitudinal magnetic field of a solenoid magnet and the bias voltages on electrodes. In this report, we will show simulation results how to control distributions of electrons and ions as well as that of the proton beam inside the column.
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