![]() ![]() Statistical uncertainties of 2 to 3% are associated with the numbers of particles simulated overall uncertainties of ∼15% allow for the uncertainties of the cross sections and primary GCR flux. Fallen around fifty-thousand years ago and known to the people endemic to the region of northern Arizona for thousands of years, the Canyon Diablo meteorite. The Canyon Diablo meteorite was first recognized in 1891 and, to date, over 30 metric tons of material have been recovered. Garvie, Center for Meteorite Stud- ies, Arizona State University, Tempe, Arizona 85287-1404, USA,, Pter Nmeth, Department of. The production rate of 59Ni was calculated by integration over the energy of the product of neutron fluxes, computed by LCS, and neutron-capture cross sections weighted by target nuclei concentration. This 4,000-foot wide and 600-foot deep crater was formed by the Canyon Diablo iron meteorite, and is one of the world’s best-preserved meteorite impact craters. We model the Canyon Diablo meteoroid as a sphere 15 m in radius with the average composition of Canyon Diablo meteorites (5) irradiated by 10 5 galactic cosmic ray (GCR) protons at a rate of 4.8 protons cm −2 s −1-that is, the GCR primary particle spectrum averaged over a typical solar cycle. It has a diameter of 1.2km and is 170m deep and is located in Arizona, United States. Calculations are based on the Los Alamos High Energy Transport Code System (LCS), a system of Monte Carlo computer codes that treats cosmic ray particle production and transport. Canyon Diablo meteorite fell on the Earth around 50.000 years ago and created one of the most spectacular craters on Earth, The Meteor Crater (also known as Barringer Crater). ![]()
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