The multiply charged primary cosmic radiation at solar minimum, 1965

Abstract

The primary cosmic ray charge and energy spectra have been obtained for Helium through Neon during the recent period when solar modulation effects were at a minimum. These spectra represent a synthesis of preliminary experimental results from cosmic ray experiments flown on OGO-I, IMP-I11 and high latitude Skyhook balloon flights. The H e energy spectrum is given from 35 to 750 Mev/nucleon. The energy spectra for Lithium-Oxygen covers the interval -40-1200 Mev/nucleon. Integral flux values > 1200 Mev a r e also obtained for all components. L/M ratios of 0.29 .07 at 100