Abstract
APPLETON1 has shown that for the ordinary ray the integrated absorption coefficient k for absorption in the deviating region (that is, in the region where approaches zero) may be calculated from the following formula: where, the collisional friction frequency per electron per second, is assumed to be constant throughout the deviating region; 0 is the reflection coefficient for the ordinary ray; P0 is the group path; and P0 is the optical path of the wave.
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References
Appleton, NATURE, 122, 879 (1928). 135, 618 (1935).
Eckersley, NATURE, 135, 435 (1935).
Farmer and Ratcliffe, Proc. Roy. Soc., A, 151, 370 (1935).
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TOSHNIWAL, G., PANT, B. & BAJPAI, R. Collisional Friction Frequency in the Ionosphere at Allahabad. Nature 138, 37 (1936). https://doi.org/10.1038/138037a0
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DOI: https://doi.org/10.1038/138037a0
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