On the stark effect of the line Hα

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(1) A new canal-ray tube was designed to obtain sharp Doppler lines and an intense rest line of H_α. By observing the tube in the longitudinal direction, the Stark pattern of the rest line was photographed in the field 14, 790 V./cm. (2) The observed intensities are in general accordance with "dynamische Intensitaeten", but considerable enhancements and asymmetries were found in some of the components. (3) These discrepancies have been explained by the inequality in numbers of atoms excited into the initial states per second, caused by that the mean free time of residual gas atoms was not so large compared with the life time of their excited states. (4) The observed asymmetries in the displacements are in good accordance with the theoretical values derived by Schlapp. (5) Small enhancement was observed in the displacement of the first-order Stark effect. (6) The coefficient of the first-order Stark effect amounts to 6.44×10^<-5>±0.3%, which is 0.5% greater than the theoretical value. In conclusion, the writer wishes to express, his best thanks to Prof. J. Okubo, for the continual interest and encouragement throughout the course of this investigation.
東北大学の論文