| Paper | Title | Page |
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TUPPB051 |
Development of an Field Emission Source for High-Charge Ion Beams Generation | |
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| On an experimental installation some experiments were fulfilled in case of feeding the positive pulse (300-400 kV, 50 ns) to a block of aluminum emitters. The measurements performed with using of track detectors, time-of-flight mass spectrometer, and magnetic spectrometer were shown that the ion beams largely consist of high-charge aluminum ions with charge Z=7-9 and pulse duration of the ion current 20 ns. The ion current magnitude in the planar-electrode diode was 30 A, in the cylinder diode was 200 A; in the diode with spherical focusing the current was 35 A and current density in crossover 5 A/cm2. The measurements were shown that the generation of high-charge ions is connected with the field emission of the ions out of the emitters at considerable electrical field strength more then 1 GV/cm. | ||