SRC-116

Self-focusing of radio waves in an underdense ionosphere, J. Geophys. Res. 86(A2) 600-608

F. W. Perkins and M. V. Goldman ·1981 · T1 measured result, peer reviewed · VC06

OSTI 6536431 the identifier this document is registered under

Published claims resting on this source

CLM-0088 The published abstract of the original paper states a testable condition for whether self-focusing can happen at all, and gives the growth length as 25 km in the upper ionosphere and 1 km lower down. Its formulas are set at 15 MHz and carry two factors the abstract does not explain.
CLM-0093 The thousand-fold disagreement between the two published versions was a lost micro prefix in the abstract I was working from. The papers agree.
CLM-0157 The published abstract of a 1981 physics paper on self-focusing gives its threshold formulas scaled to 15 MHz, about 160 times lower than the 2.45 GHz often planned for space solar power, and shows no example at gigahertz frequencies.

energyaperture.com/s/src-116

SRC-116 , recorded 2026-09-02.