Abstract
A new version of high efficiency proton source is being developed for Frankfurter-Neutronen-Quelle am Stern-Gerlach-Zentrum, a worldwide unique pulsed neutron source. The injector will provide dc proton beam currents of 200 mA at 120 keV with a beam divergence angle of less than 50 mrad. The new design consists of a plasma generator with a multiple filament arrangement and a compact pentode extraction system. The beam will be extracted from a seven hole outlet electrode. Great efforts are made to achieve an adequate operation time (~3 days) of the source as well as to obtain high reliability during that operation period with less than 1 V breakdowns per hour. The following article will present the current status of the proton source development including beam formation simulations with IGUN.
Published Version
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