The drift velocity of electrons in mercury vapour at 573 K

Details The drift velocity of electrons in mercury vapour at 573 K The drift velocity of electrons in mercury vapour at 573 K

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aujph..33..231e&link_type=abstract

Australian Journal of Physics, vol. 33, May 1980, p. 231-250.

Physics

2

Drift Rate, Electron Diffusion, Electron Energy, Mercury Vapor, Temperature Effects, Velocity Measurement, Elastic Scattering, Electron Scattering, Error Analysis, High Temperature Tests, Molecular Collisions, Pressure Measurement, Van Der Waals Forces, Velocity Errors

Scientific paper

The drift velocity of electrons in mercury vapor at 573 K has been measured using the Bradbury-Nielsen time-of-flight method at vapor number densities ranging from 3.40 x 10 to the 17th to 1.83 x 10 to the 18th/cu cm and at E/N values from 0.1 to 3.0 Td. The measured drift velocities increase linearly with mercury vapor number density, the magnitude of the dependence being a function of E/N. This number density dependence has been attributed to the presence of mercury dimers and the drift velocity corresponding to dimer-free mercury vapor has been obtained by extrapolation. Sources of error are examined and the present results are compared with those of previous workers.

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