Physics
Scientific paper
Dec 1926
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1926phrv...28.1136s&link_type=abstract
Physical Review, vol. 28, Issue 6, pp. 1136-1146
Physics
Scientific paper
Using a Hilger quartz spectrograph, size C, spectrograms were made from electrodeless tubes containing helium, hydrogen, nitrogen, neon, xenon, krypton, mercury and chlorine. High frequency peak voltages were computed from the equation E=KIdλC, where K is a constant depending upon the velocity of light and the cycles per second of the generator. An electroscope was constructed and calibrated for measuring the potential over the secondary of a 25000 volt transformer. Increasing the potential over the tube for either the 60 cycle or high frequency currents seemed merely to intensify the lines. Changes in frequency from 0.58×106 to 1.91×106 produced no changes in spectra. When the potential was kept approximately constant, marked differences were obtained, however, between the 60 cycle spectra and the high frequency spectra (1) of a chlorine tube containing nitrogen as an impurity, (2) of a helium tube containing nitrogen as an impurity and (3) of a helium tube containing mercury as an impurity.
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