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Neon, the second-lightest noble gas, has three stable isotopes and no long-lived radioactive isotopes.The stable isotopes, neon-20, neon-21, and neon-22, are present in a ratio of 9048 : 27 : 925 in the atmosphere and in varying compositions in other materials.By simultaneously analyzing all three isotopes and verifying whether they plot on a mixing line between atmospheric and spallogenic components, the cosmogenic neon method provides an internal ‘reliability check’ which is absent from other commonly used nuclides.Fourth, neon can be measured using a standard sector field noble gas mass spectrometer.Neon is produced by both cosmic ray and nuclear processes in geologic materials.As a result, the neon system can provide a wealth of information about different processes.Production rates of neon-21 and neon-22 are currently calculated using calculated reaction cross section and mineral stopping power data that has not been verified experimentally.

This greatly increases sample throughput, which in turn opens up exciting opportunities for detrital work (Dunai et al., 2005; Codilean et al., 2008). Such double- or triple-dating may be used for burial dating (Balco and Shuster, 2009a; Vermeesch et al., 2010), for catchment-wide erosion studies with complex exposure histories (Kober et al., 2009), or to measure the exposure age of old and very slowly eroding surfaces (Fujioka et al., 2005).at the Université Laval, Quebec, with extensive facilities for preparing samples for AMS analysis.The Director of the CEN is Professor Michel Allard who leads research on carbon cycling in permafrost environments.The proportion of the atmospheric component and these other components depends on the exposure and thermal histories of the material and on its chemical composition.Cosmogenic neon comes primarily from spallation reactions caused by the interaction of cosmic radiation with elements heavier than neon.

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