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A method for studying fluctuations in the microscopic emission parameters of flat multiple-point cathodes has been developed. For field emitters based on polymer/multiwalled carbon nanotube nanocomposites, the statistical distribution of the effective heights of emission centers has been obtained. Numerical estimates made using Pearson's chi-squared test confirmed that this distribution is lognormal. For these field emitters, the influence of the emission current on the statistical parameters that describe the emission characteristics is discussed.
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Kolosko et al. (2014) studied this question.
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