Production cross sections of Al-26, Na-22, Be-7 from argon and of Be-10, Be-7 from nitrogen - Implications for production rates of Al-26 and Be-10 in the atmosphere

Details Production cross sections of Al-26, Na-22, Be-7 from argon and of Be-10, Be-7 from nitrogen - Implications for production rates of Al-26 and Be-10 in the atmosphere Production cross sections of Al-26, Na-22, Be-7 from argon and of Be-10, Be-7 from nitrogen - Implications for production rates of Al-26 and Be-10 in the atmosphere

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981e%26psl..53..203r&link_type=abstract

Earth and Planetary Science Letters, vol. 53, no. 2, Apr. 1981, p. 203-210.

Computer Science

26

Atmospheric Composition, Cosmic Rays, Earth Atmosphere, Particle Production, Radioactive Isotopes, Aluminum 26, Argon, Beryllium 10, Beryllium 7, Energetic Particles, Galactic Radiation, Nitrogen, Proton Irradiation, Sodium 22

Scientific paper

The cross sections for production of Be-7, Na-22, and Al-26 from the spallation of argon at, respectively, 480, 880, and 2980 MeV are measured, as well as the cross sections for Be-10 and Be-7 production from nitrogen at 450 and 2950 MeV, respectively. Results are compared with values calculated from the semi-empirical formula of Silbergerg and Tsao (1973). The production rates of Al-26 and Be-10 in the atmosphere by galactic cosmic rays are calculated from the measured cross sections. The rates are compared with experimental results, and the potential use of the Al-26/Be-10 ratio for dating marine sediments and evaluating cosmic dust influx is discussed in light of the cross section values.

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