The effect of a tantalum surface bounding the lateral surface of a positive discharge column in helium at pressure of 1-3 mm Hg and currents of 1-600 mA in a tube with a diameter of 10 cm upon the electrical concentrations and temperatures of electrons was experimentally investigated,and the radial distribution of atoms in states of 2 singlet S0 and 2 triplet S was also investigated. Author
Edited machine trans. of mono. Voprosy Fiziki Nizkotemperaturnoi Plazmy, Minsk, 1970 p471-472, by Edwin P. Pentecost.