Lifetime of the Highly Efficient H- Ion Sources
D.S. Bollinger (Fermilab), V.G. Dudnikov (MUONS Inc., Batavia), D.C., Faircloth, S.R. Lawrie (Rutherford)
TL;DR
This paper analyzes factors limiting the lifetime of Compact Surface Plasma Sources and proposes modifications to extend their operational duration by optimizing discharge conditions and design improvements.
Contribution
It introduces a new discharge cell design that enables longer-lasting H- ion sources with maintained beam quality and efficiency.
Findings
Noiseless discharges achieved with lower gas and cesium densities
Increased emission aperture allows longer operation at lower discharge currents
Design of an advanced CSPS for enhanced lifetime
Abstract
Factors limiting the operating lifetime of Compact Surface Plasma Sources (CSPS) are analyzed and possible treatments for lifetime enhancement are considered. Noiseless discharges with lower gas and cesium densities are produced in experiments with modified discharge cells. With these discharge cells it is possible to increase the emission aperture and extract the same beam with a lower discharge current and with correspondingly increased source lifetime. A design of an advanced CSPS is presented.
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Taxonomy
TopicsParticle accelerators and beam dynamics · Atomic and Molecular Physics · Mass Spectrometry Techniques and Applications