Challenges and opportunities in high-precision Be-10 measurements at CAMS

@inproceedings{Rood2010ChallengesAO,
  title={Challenges and opportunities in high-precision Be-10 measurements at CAMS},
  author={Dylan H Rood and Steve Hall and Thomas P Guilderson and Robert C. Finkel and Tom A Brown},
  year={2010}
}
We determined the overall efficiency for Be of the high-intensity LLNL modified Middleton cesium sputter source in combination with the CAMS FN mass spectrometer. BeO ionization efficiency is >3%. Charge exchange efficiency including transmission through the tandem for 7.5 MeV Be is 34%, resulting in a total system efficiency of just over 1%. At this efficiency and with very low backgrounds, we estimate our detection limit to be 1000 Be atoms. Cathodes prepared with only 80 lg of Be show only… CONTINUE READING