Our limit of detection for 10Be by accelerator mass spectrometry has been lowered to a few million atoms by the installation of a Wien filter which screens out co-transmitted 9Be. Analyses of six Central American basalts gave 10Be contents ranging from 1 × 106 to 60 × 106 atom/g. The sample richest in 10Be has been contaminated by sediments. The other samples have 10Be contents in the range reported in the literature by Brown and co-workers.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics