Abstract
Detection of heavy elements by accelerator mass spectrometry with the electron cyclotron resonance ion source, Argonne linear accelerator and fragment mass analyzer (ECRIS-ATLAS-FMA) system has been developed. The use of the ECR-ATLAS system for AMS of heavy elements has two interesting features: (i) the efficient production of highcharge state ions in the ECR source ensures the elimination of molecular ions at the source stage, a highly attractive feature for any mass-spectrometric use not exploited so far; (ii) the linear acceleration based on velocity matching and the beam transport system act as a powerful mass filter for background suppression. We have shown that our system reaches an abundance sensitivity of 1 × 10-14 for Pb isotopes. The 236U detection sensitivity is 236U/U ≳ 1 × 10-12, limited mainly by the ion source output.
Original language | English |
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Pages (from-to) | 688-692 |
Number of pages | 5 |
Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
Volume | 172 |
Issue number | 1-4 |
DOIs | |
State | Published - 2000 |