Abstract
10Be has been observed at a level of about 10 −14 in four commercially available beryllium compounds. The possibility that this 10Be arises from cross-talk in the ion source has been eliminated. On the other hand, beryllium oxide extracted from beryl crystals found at a depth of 30–40 feet in a lithium mine in South Dakota shows no indication of containing 10Be. An upper limit on its 10 Be: 9 Be ratio is 1.7 × 10 −15 at the 95% confidence level.
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Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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