Titlebook: Spallation Nuclear Reactions and their Applications; B. S. P. Shen,M. Merker Book 1976 D. Reidel Publishing Company, Dordrecht, Holland 19

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BALK

,Cosmic Ray Produced Neutrons and Nuclides in the Earth’s Atmosphere,otons, antinucleons, electrons, positrons, neutrinos, mesons, hyperons, stable nuclides, radionuclides, X-rays and gamma rays. Although the production of these various secondaries are thus intimately related, the general problem has never been attacked as a whole, nor do I find that it has ever been

organism

Radioactive Isotopes on the Moon,n by Bauer (1947) that the helium observed in meteorites was mostly produced by cosmic rays. The first searches for tritium in iron meteorites by Fireman (1958) led to the possibility of measuring the cosmic ray exposure ages of meteorites. By the time of the first lunar landing there were a number

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