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This paper examines the cosmic ray He and C nuclei spectra below ~1 GeV/nuc,as well as the very rapid increase in the He/C ratio below ~100 MeV/nuc,measured by Voyager 1 beyond the heliopause. Using a simple Leaky Box Model(LBM) for galactic propagation we have not been able to simultaneouslyreproduce the individual He and C nuclei spectra and the large increase in He/Cratio that is observed at low energies. However, using a truncated LBM withdifferent truncation parameters for each nucleus that are related to their rateof energy loss by ionization which is ~Z2/A, these different features can bematched. This suggests that we are observing the effects of the sourcedistribution of cosmic rays in the galaxy on the low energy spectra of cosmicray nuclei and that there may be a paucity of nearby sources. In thispropagation model we start very specific source spectra for He and C which are~dj/dP = P-2.24, the same for each nucleus and also for all rigidities. Thesesource spectra become spectra with spectral indices ~-2.69 at high rigiditiesfor both charges as a result of a rigidity dependence of the diffusioncoefficient governing the propagation which is taken to be ~P-0.45. Thisexponent is determined directly from the B/C ratio measured by AMS-2. Thesepropagated P-2.69 spectra, when extended to high energies, predict He and Cintensities and a He/C ratio that are within +3-5% of the intensities and ratiorecently measured by AMS-2 in the energy range from 10 to 1000 GeV/nuc.

The Different Shapes of the LIS Energy Spectra of Cosmic Ray He and C  Nuclei Below ~1 GeV/nuc and The Cosmic Ray He/C Nuclei Ratio vs. Energy -V1  Measurements and LBM Propagation Predictions