By Edward U. Condon (auth.), Asim O. Barut, Halis Odabasi, Alwyn van der Merwe (eds.)
E.U. Condon's significant contributions have been in atomic and molecular physics and spectroscopy; his booklet with G.H. Shortley at the concept of Atomic Spectra ruled the sphere of spectroscopy for part a century and is still a useful reference. He additionally performed an immense position within the associations of yankee technological know-how. He served for a few years because the editor of studies of recent Physics, and with Hugh Odishaw he edited the nonetheless commonly used guide of Physics. After global battle II, Condon turned director of the nationwide Bureau of criteria (now NIST), and helped to make it one of many finest examine laboratories within the actual sciences on the planet. The Selected medical Papers reprint a number of the most crucial contributions Condon made to atomic physics, quantum thought, nuclear physics, condensed-matter physics and different fields. The Selected renowned Writings include articles he wrote on technical themes for such journals as The American magazine of Physics, technological know-how, and Nature, in addition to reflections on schooling, UFO's, and different topics.
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Additional info for Selected Scientific Papers of E.U. Condon
These are included in Table I along with H(z) and F(z). 6. Discussion of Results. In fig. 4 are plotted the ratios F(z)IH(z) and G(z)IH(z). If these ratios remained constant, or fairly constant, this would indicate that the functions F and G could be fairly well represented by a Sutherland formula of the form F(z) 1 = F(O)'-; l+z G(z) 1 = G(O)·-. l+z However, in the important case of G(z), the ratio shows a 35 per cent variation. One may try to fit a Sutherland form to G(z), introducing another constant c: 1 G(z) = G(O)'-1- .
The single-branched intensity distribution the writer believes is entirely a consequence or the lack of complete experimental data. The intensity estimates for the second positive group of nitrogen (Fig. 10) are due to Birge, being made from inspection of spectrograms taken by E. P. Lewis. 8 Intensity Distribution in Band Systems 19 The data on the first negative group of nitrogen (Fig. 16 In conclusion it seems permissible to claim that the theory outlined here gives a satisfactory semi-quantitative correlation between the intensity distribution in band systems and the positional structure of the systems by means of a definite mechanical picture of the processes governing transition probabilities.
Here the data are for the absorption spectrum rather than for emission as in the examples previously given. To be consistent with the other examples, however, the terms "initial" and "final" in the foregoing set of constants have been chosen so as to refer to the emission process. In the absorption process, nil becomes the initial quantum number and n' the final. Mecke has already commented on the peculiar intensity distribution in 12 , his Fig. 4 contrasting it with the more typical distribution of intensity of the violet CN-system.
Selected Scientific Papers of E.U. Condon by Edward U. Condon (auth.), Asim O. Barut, Halis Odabasi, Alwyn van der Merwe (eds.)