Solar Neutron Telescope Count Peaks Not Due to Gamma Rays

The 7 March 2011 count history for the solar neutron telescope (SNT) at Mt. Sierra Negra shows two peaks of equal intensity one hour apart. Several reasons have been given for the earlier peak to be due to solar gamma rays, and it was the first experimental data of solar gamma rays reaching the ground. The significant result is solar gamma rays must have exposed aircraft flying at low latitudes. The Fermi satellite, in low-earth orbit, detected a solar gamma ray event that day, but gamma rays did not arrive at Fermi until after the first SNT count peak, and the maximum flux at Fermi was less than count rates for the two peaks. Further, the second SNT peak occurred when the Sun was closer to the SNT at Mt. Mauna Kea, and no peak was reported for that SNT. Weather data rule out thunderstorms as a cause of gamma rays at the SNT, and the SNT energy threshold excludes counts by radioactivity. In conclusion, solar gamma rays were not counted at the ground, so there is no proof they reached flight levels. 35th International Cosmic Ray Conference ICRC2017 10-20 July, 2017 Bexco, Busan, Korea