
doi: 10.1007/bf00850942
The behavior of the distribution function for the electric field intensity at the cathode is considered including only nearest-neighbor effects and is compared with the behavior of the distribution function obtained when including the effects of many ions. Motion of ions in the near-cathode region and their nonuniform density there are taken into account in the calculations of the distribution function. It is shown that for a broad range of parameters the resultant distribution function differs little from the distribution function found when constant density is assumed.
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