References
- SmyserW. E. and SperosD. M. Discharge lamp thermionic cathode containing emission material, U.S. Patent 3,708,710.
- BowknegtA. et al. “Electrodes in discharge lamps”, Philips Technical Review, Vol. 35, 1975, p. 356.
- de GrootJ. J. and van RooijenJ. The photon absorption cross-section of Na2 molecules and the influence of these molecules on the spectrum of the high pressure sodium arc, Proceedings of the 12th International Conference on Phenomena in Ionized Gases, Part 1,HolscherJ. G. A. and SchramD. C., ed., North Holland Publishing Co., 1975, p. 135.
- HirayamaC. and BhallaR. S. “The dissociative vaporization of alkaline earth-containing mixed oxide thermionic emission materials”, Journal of the Illuminating Engineering Society, Vol. 9, No. 4, July 1980, p. 240.
- FranklinJ. L. et al. Ionization potentials, appearance potentials, and heat of formation of gaseous positive ions, NSRDS-NBS26, National Bureau of Standards, 1969, p. 17.
- MorgulisN. D. and TischenkoV. D. “The investigation of cathode sputtering in the near threshold region 1”, Soviet Physics JEPT, Vol. 3, 1956, p. 52.