Progress in AMS measurement of natural 32 Si for glacier ice dating
AMS measurement of 32Si can allow for ice core dating over the last thousand years. Technique developments are reported. Necessary negative-ion yields of 20-30% can now be consistently achieved, and permit an overall efficiency from ice sample to detector of ∼1%. A 30Si-spike technique has overcome the problem of extremely low intrinsic silicon concentration, with the added benefit of allowing determination of ppb-level silicon via isotope dilution. Improvements have also been made to the...[Show more]
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|Source:||Nuclear Instruments and Methods in Physics Research: Section B|
|01_Morgenstern_Progress_in_AMS_measurement_of_2010.pdf||219.24 kB||Adobe PDF||Request a copy|
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