“School of Particles”
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| Paper IPM / Particles / 15782 |
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The results of a Particle-In-Cell Monte-Carlo Collision simulation of a cold cathode Penning type ion source are presented. The source is designed to generate Hâ ions through the volume production process. Twenty-one important processes including electron and heavy particle collisions are introduced into the simulation. The main focus was the energy distribution of electrons which has a large effect on the Hâ production rate in the volume production. The dependence of the energy distribution of electrons on the axial magnetic field was investigated. The large sensitivity of the Hâ production rate to the energy distribution of electrons was measured. It was observed that for an anode with a 5âmm radius increasing the axial magnetic field in the range of 0.5â1.1âT results in the increase in the Hâ density almost by a factor of 14. In addition, it was found that the anode with a radius of 5âmm was the most efficient anode in Hâ production among the anodes with radii from 3 to 6âmm.
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