A Possible Origin of the Fine Structure Constant

We relate the Bohr hydrogen atom to a finite sized, revolving charge, vortex model of the electron that has a light speed Compton wavelength orbit. (Defs: Comptons (or Cmptns)$=$unit length, electron rotation time$=$unit t, Cmptn/rot$=$unit v. ) We utilize their radial dimensions to determine an origin of the Bohr atom's inverse fine structure constant, and that value is 137.019, which is within 120 ppm of observed. Its value is determined primarily by a train of 43 Cmptn wavelets including both those emitted by the electron toward the nucleus and those reflected back to it, this combined distance being approximately twice the value of the Bohr radius. In addition, there is a 0.58969 Cmptn wavelet, whose dimension is determined by a three quarter rotation of the electron charge from its 90 degree emission point, and corrected for the finite sized electron. That value is added to the 43 Cmptns so that 1/$\alpha = $ (43 $+$ 0.58969) $\pi = $ 136.94103 Cmptns. We multiply this by 1.000572, the combined potential well and reduced mass corrections to the wavelength, and we obtain the above value. -- References: \textbf{www.tachyonmodel.com}, Ernst Wall, \textbf{The Physics of Tachyons}, Hadronic Press (1995)