Abstract
IN the last few months we have been engaged in observations of electron discharges in hydrogen which appear to supplement those described by Prof. Harvey B. Lemon in NATURE of January 26. The region investigated by us is that of lower values of voltage, discharge current and gas pressure, our upper limits being 60 volts, 10 milliamperes, and 0.8 mm. of mercury respectively. Our source of electrons consisted of a filament either of tungsten or of barytacoated platinum about 2 cm. from a flat circular nickel anode of 2.5 cm. diameter provided with a central rectangular slit, the whole being suitably enclosed in an evacuated transparent quartz tube.
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RICHARDSON, O., TANAKA, T. The Continuous Spectrum of Hydrogen. Nature 113, 192–193 (1924). https://doi.org/10.1038/113192c0
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DOI: https://doi.org/10.1038/113192c0
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