Fifield, L Keith; Tims, Stephen; Gladkis, Laura; Morton, Clyde
The potential of the 26Al isotope for exposure and burial dating applications has not been fully realized to date due to the low efficiency for producing the Al- ion in negative ion sources. Here, we show that it is possible to use the AlO- ion instead, which is produced an order of magnitude more efficiently, provided that a gas-filled magnet is employed to reduce the intense flux of 26Mg ions at the detector. It is then possible to achieve comparable counting statistics for 26Al as for the...[Show more]
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