Abstract
The authors present results of measurements of the electron energy distribution function (EEDF) in the range of 0-40 eV for the plasma of a transverse hollow-cathode discharge in helium as used in laser technology. The measurement technique employs the second derivative of the electric probe current-voltage characteristic. The results show that the EEDF for the transverse hollow-cathode discharge is neither Maxwellian nor Druyvesteynian and the influence of some elementary processes on the shape of the EEDF is discernible. The presence of the EEDF maximum at 26 eV is believed to suggest the importance of recombination in atomic processes occurring inside a hollow cathode.
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